90988934044 has 12 divisors (see below), whose sum is σ = 159793288984. Its totient is φ = 45333708624.

The previous prime is 90988934017. The next prime is 90988934077. The reversal of 90988934044 is 44043988909.

It is a super-2 number, since 2×90988934044² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 90988934044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40188327 + ... + 40190590.

Almost surely, 2^90988934044 is an apocalyptic number.

It is an amenable number.

90988934044 is a deficient number, since it is larger than the sum of its proper divisors (68804354940).

90988934044 is a wasteful number, since it uses less digits than its factorization.

90988934044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80379204 (or 80379202 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 90988934044 in words is "ninety billion, nine hundred eighty-eight million, nine hundred thirty-four thousand, forty-four".