1890927125688 has 64 divisors (see below), whose sum is σ = 5025926154240. Its totient is φ = 591528738944.

The previous prime is 1890927125657. The next prime is 1890927125713. The reversal of 1890927125688 is 8865217290981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32287656 + ... + 32346167.

It is an arithmetic number, because the mean of its divisors is an integer number (78530096160).

Almost surely, 2^{1890927125688} is an apocalyptic number.

It is an amenable number.

1890927125688 is an abundant number, since it is smaller than the sum of its proper divisors (3134999028552).

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

1890927125688 is a wasteful number, since it uses less digits than its factorization.

1890927125688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64633908 (or 64633904 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 66.

The spelling of 1890927125688 in words is "one trillion, eight hundred ninety billion, nine hundred twenty-seven million, one hundred twenty-five thousand, six hundred eighty-eight".