90578655363 has 54 divisors (see below), whose sum is σ = 142457660172. Its totient is φ = 51044031360.

The previous prime is 90578655341. The next prime is 90578655371. The reversal of 90578655363 is 36355687509.

It is not a de Polignac number, because 90578655363 - 2⁸ = 90578655107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90578655313) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 375844923 + ... + 375845163.

It is an arithmetic number, because the mean of its divisors is an integer number (2638104818).

Almost surely, 2^90578655363 is an apocalyptic number.

90578655363 is a deficient number, since it is larger than the sum of its proper divisors (51879004809).

90578655363 is an equidigital number, since it uses as much as digits as its factorization.

90578655363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 57.

The spelling of 90578655363 in words is "ninety billion, five hundred seventy-eight million, six hundred fifty-five thousand, three hundred sixty-three".