90468017892 has 72 divisors (see below), whose sum is σ = 262034712576. Its totient is φ = 25780489344.

The previous prime is 90468017879. The next prime is 90468017897. The reversal of 90468017892 is 29871086409.

90468017892 is a `hidden beast` number, since 9 + 0 + 468 + 0 + 178 + 9 + 2 = 666.

It is a super-2 number, since 2×90468017892² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90468017897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372153 + ... + 565184.

It is an arithmetic number, because the mean of its divisors is an integer number (3639371008).

Almost surely, 2^90468017892 is an apocalyptic number.

It is an amenable number.

90468017892 is an abundant number, since it is smaller than the sum of its proper divisors (171566694684).

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

90468017892 is a wasteful number, since it uses less digits than its factorization.

90468017892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937737 (or 937732 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 90468017892 in words is "ninety billion, four hundred sixty-eight million, seventeen thousand, eight hundred ninety-two".