90265688892 has 72 divisors (see below), whose sum is σ = 230527157952. Its totient is φ = 29778192000.

The previous prime is 90265688873. The next prime is 90265688911. The reversal of 90265688892 is 29888656209.

It is an interprime number because it is at equal distance from previous prime (90265688873) and next prime (90265688911).

It is a super-2 number, since 2×90265688892² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13548042 + ... + 13554702.

Almost surely, 2^90265688892 is an apocalyptic number.

It is an amenable number.

90265688892 is an abundant number, since it is smaller than the sum of its proper divisors (140261469060).

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

90265688892 is a wasteful number, since it uses less digits than its factorization.

90265688892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10499 (or 10494 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 90265688892 in words is "ninety billion, two hundred sixty-five million, six hundred eighty-eight thousand, eight hundred ninety-two".