1916845418250 has 576 divisors, whose sum is σ = 6269050359936. Its totient is φ = 436990982400.

The previous prime is 1916845418233. The next prime is 1916845418273. The reversal of 1916845418250 is 528145486191.

1916845418250 is a `hidden beast` number, since 1 + 9 + 1 + 6 + 8 + 454 + 182 + 5 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

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 287 ways as a sum of consecutive naturals, for example, 1747351702 + ... + 1747352798.

It is an arithmetic number, because the mean of its divisors is an integer number (10883767986).

Almost surely, 2^{1916845418250} is an apocalyptic number.

1916845418250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1916845418250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3134525179968).

1916845418250 is an abundant number, since it is smaller than the sum of its proper divisors (4352204941686).

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

1916845418250 is a wasteful number, since it uses less digits than its factorization.

1916845418250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 1916845418250 in words is "one trillion, nine hundred sixteen billion, eight hundred forty-five million, four hundred eighteen thousand, two hundred fifty".