90271635027 has 16 divisors (see below), whose sum is σ = 138162761472. Its totient is φ = 51356547360.

The previous prime is 90271635017. The next prime is 90271635049. The reversal of 90271635027 is 72053617209.

It is not a de Polignac number, because 90271635027 - 2⁴ = 90271635011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90271635027.

It is not an unprimeable number, because it can be changed into a prime (90271635017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9463624 + ... + 9473157.

It is an arithmetic number, because the mean of its divisors is an integer number (8635172592).

Almost surely, 2^90271635027 is an apocalyptic number.

90271635027 is a deficient number, since it is larger than the sum of its proper divisors (47891126445).

90271635027 is a wasteful number, since it uses less digits than its factorization.

90271635027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937018.

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 90271635027 in words is "ninety billion, two hundred seventy-one million, six hundred thirty-five thousand, twenty-seven".