90991294296 has 64 divisors (see below), whose sum is σ = 262404852480. Its totient is φ = 25754540160.

The previous prime is 90991294283. The next prime is 90991294297. The reversal of 90991294296 is 69249219909.

It is a super-2 number, since 2×90991294296² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90991294297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512935 + ... + 2548886.

It is an arithmetic number, because the mean of its divisors is an integer number (4100075820).

Almost surely, 2^90991294296 is an apocalyptic number.

It is an amenable number.

90991294296 is an abundant number, since it is smaller than the sum of its proper divisors (171413558184).

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

90991294296 is a wasteful number, since it uses less digits than its factorization.

90991294296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061944 (or 5061940 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 60.

The spelling of 90991294296 in words is "ninety billion, nine hundred ninety-one million, two hundred ninety-four thousand, two hundred ninety-six".