90731112810 has 64 divisors (see below), whose sum is σ = 235892805120. Its totient is φ = 22333796160.

The previous prime is 90731112803. The next prime is 90731112869. The reversal of 90731112810 is 1821113709.

It is a super-2 number, since 2×90731112810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622386 + ... + 754205.

It is an arithmetic number, because the mean of its divisors is an integer number (3685825080).

Almost surely, 2^90731112810 is an apocalyptic number.

90731112810 is an abundant number, since it is smaller than the sum of its proper divisors (145161692310).

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

90731112810 is a wasteful number, since it uses less digits than its factorization.

90731112810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376640 (or 1376614 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 33.

The spelling of 90731112810 in words is "ninety billion, seven hundred thirty-one million, one hundred twelve thousand, eight hundred ten".