920890692564 has 48 divisors (see below), whose sum is σ = 2150775244800. Its totient is φ = 306673653856.

The previous prime is 920890692541. The next prime is 920890692581. The reversal of 920890692564 is 465296098029.

It is a junction number, because it is equal to n+sod(n) for n = 920890692498 and 920890692507.

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, 92019649 + ... + 92029655.

It is an arithmetic number, because the mean of its divisors is an integer number (44807817600).

Almost surely, 2^920890692564 is an apocalyptic number.

It is an amenable number.

920890692564 is an abundant number, since it is smaller than the sum of its proper divisors (1229884552236).

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

920890692564 is a wasteful number, since it uses less digits than its factorization.

920890692564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16492 (or 16490 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 920890692564 in words is "nine hundred twenty billion, eight hundred ninety million, six hundred ninety-two thousand, five hundred sixty-four".