1898690746680 has 768 divisors, whose sum is σ = 7833315409920. Its totient is φ = 388168962048.

The previous prime is 1898690746679. The next prime is 1898690746691. The reversal of 1898690746680 is 866470968981.

1898690746680 is a `hidden beast` number, since 1 + 8 + 9 + 86 + 9 + 0 + 7 + 466 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1898690746599 and 1898690746608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 178897054 + ... + 178907666.

It is an arithmetic number, because the mean of its divisors is an integer number (10199629440).

Almost surely, 2^{1898690746680} is an apocalyptic number.

1898690746680 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 1898690746680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3916657704960).

1898690746680 is an abundant number, since it is smaller than the sum of its proper divisors (5934624663240).

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

1898690746680 is a wasteful number, since it uses less digits than its factorization.

1898690746680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820 (or 10813 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 1898690746680 in words is "one trillion, eight hundred ninety-eight billion, six hundred ninety million, seven hundred forty-six thousand, six hundred eighty".