90531558720927 has 12 divisors (see below), whose sum is σ = 133550100808800. Its totient is φ = 59070236895648.

The previous prime is 90531558720923. The next prime is 90531558720973. The reversal of 90531558720927 is 72902785513509.

90531558720927 is a `hidden beast` number, since 9 + 0 + 5 + 3 + 1 + 5 + 587 + 20 + 9 + 27 = 666.

It is not a de Polignac number, because 90531558720927 - 2² = 90531558720923 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90531558720923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107011298302 + ... + 107011299147.

It is an arithmetic number, because the mean of its divisors is an integer number (11129175067400).

Almost surely, 2^{90531558720927} is an apocalyptic number.

90531558720927 is a deficient number, since it is larger than the sum of its proper divisors (43018542087873).

90531558720927 is a wasteful number, since it uses less digits than its factorization.

90531558720927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214022597502 (or 214022597499 counting only the distinct ones).

The product of its (nonzero) digits is 47628000, while the sum is 63.

The spelling of 90531558720927 in words is "ninety trillion, five hundred thirty-one billion, five hundred fifty-eight million, seven hundred twenty thousand, nine hundred twenty-seven".