90288805107 has 16 divisors (see below), whose sum is σ = 121897480320. Its totient is φ = 59437071552.

The previous prime is 90288805097. The next prime is 90288805109. The reversal of 90288805107 is 70150888209.

It is not a de Polignac number, because 90288805107 - 2¹⁰ = 90288804083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90288805109) 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, 403519 + ... + 586007.

It is an arithmetic number, because the mean of its divisors is an integer number (7618592520).

Almost surely, 2^90288805107 is an apocalyptic number.

90288805107 is a deficient number, since it is larger than the sum of its proper divisors (31608675213).

90288805107 is a wasteful number, since it uses less digits than its factorization.

90288805107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184562.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 90288805107 in words is "ninety billion, two hundred eighty-eight million, eight hundred five thousand, one hundred seven".