90819537936 has 40 divisors (see below), whose sum is σ = 235464167424. Its totient is φ = 30163885440.

The previous prime is 90819537883. The next prime is 90819537953. The reversal of 90819537936 is 63973591809.

It is a super-4 number, since 4×90819537936⁴ (a number of 45 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90819537936.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3402000 + ... + 3428591.

Almost surely, 2^90819537936 is an apocalyptic number.

It is an amenable number.

90819537936 is an abundant number, since it is smaller than the sum of its proper divisors (144644629488).

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

90819537936 is a wasteful number, since it uses less digits than its factorization.

90819537936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830879 (or 6830873 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 90819537936 in words is "ninety billion, eight hundred nineteen million, five hundred thirty-seven thousand, nine hundred thirty-six".