90157935827 has 4 divisors (see below), whose sum is σ = 90158693856. Its totient is φ = 90157177800.

The previous prime is 90157935809. The next prime is 90157935839. The reversal of 90157935827 is 72853975109.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72853975109 = 130171 ⋅559679.

It is a cyclic number.

It is not a de Polignac number, because 90157935827 - 2³⁴ = 72978066643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90157935887) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 157424 + ... + 452877.

It is an arithmetic number, because the mean of its divisors is an integer number (22539673464).

Almost surely, 2^90157935827 is an apocalyptic number.

90157935827 is a deficient number, since it is larger than the sum of its proper divisors (758029).

90157935827 is a wasteful number, since it uses less digits than its factorization.

90157935827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758028.

The product of its (nonzero) digits is 4762800, while the sum is 56.

The spelling of 90157935827 in words is "ninety billion, one hundred fifty-seven million, nine hundred thirty-five thousand, eight hundred twenty-seven".