90578756822922 has 48 divisors (see below), whose sum is σ = 196933899439368. Its totient is φ = 30088325483520.

The previous prime is 90578756822903. The next prime is 90578756822941. The reversal of 90578756822922 is 22922865787509.

It is a happy number.

90578756822922 is a `hidden beast` number, since 9 + 0 + 57 + 8 + 7 + 568 + 2 + 2 + 9 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (90578756822903) and next prime (90578756822941).

It can be written as a sum of positive squares in 4 ways, for example, as 46947725089281 + 43631031733641 = 6851841^2 + 6605379^2 .

It is a super-2 number, since 2×90578756822922² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104589922 + ... + 105452402.

Almost surely, 2^{90578756822922} is an apocalyptic number.

90578756822922 is an abundant number, since it is smaller than the sum of its proper divisors (106355142616446).

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

90578756822922 is a wasteful number, since it uses less digits than its factorization.

90578756822922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882695 (or 882692 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 72.

The spelling of 90578756822922 in words is "ninety trillion, five hundred seventy-eight billion, seven hundred fifty-six million, eight hundred twenty-two thousand, nine hundred twenty-two".