90521356695 has 32 divisors (see below), whose sum is σ = 180572474880. Its totient is φ = 37619264640.

The previous prime is 90521356553. The next prime is 90521356759. The reversal of 90521356695 is 59665312509.

It is not a de Polignac number, because 90521356695 - 2¹³ = 90521348503 is a prime.

It is a congruent number.

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, 39185580 + ... + 39187889.

It is an arithmetic number, because the mean of its divisors is an integer number (5642889840).

Almost surely, 2^90521356695 is an apocalyptic number.

90521356695 is a deficient number, since it is larger than the sum of its proper divisors (90051118185).

90521356695 is a wasteful number, since it uses less digits than its factorization.

90521356695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78373495.

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 90521356695 in words is "ninety billion, five hundred twenty-one million, three hundred fifty-six thousand, six hundred ninety-five".