1878999645960 has 256 divisors, whose sum is σ = 6507876960000. Its totient is φ = 481655365632.

The previous prime is 1878999645959. The next prime is 1878999645961. The reversal of 1878999645960 is 695469998781.

1878999645960 is a `hidden beast` number, since 1 + 8 + 78 + 9 + 9 + 96 + 459 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1878999645959) and next prime (1878999645961).

It is a self number, because there is not a number n which added to its sum of digits gives 1878999645960.

It is not an unprimeable number, because it can be changed into a prime (1878999645961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6977496 + ... + 7241784.

It is an arithmetic number, because the mean of its divisors is an integer number (25421394375).

Almost surely, 2^{1878999645960} is an apocalyptic number.

1878999645960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878999645960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3253938480000).

1878999645960 is an abundant number, since it is smaller than the sum of its proper divisors (4628877314040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1878999645960 is a wasteful number, since it uses less digits than its factorization.

1878999645960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264565 (or 264555 counting only the distinct ones).

The product of its (nonzero) digits is 2116316160, while the sum is 81.

The spelling of 1878999645960 in words is "one trillion, eight hundred seventy-eight billion, nine hundred ninety-nine million, six hundred forty-five thousand, nine hundred sixty".