8971640448522 has 16 divisors (see below), whose sum is σ = 18562014721440. Its totient is φ = 2887424512112.

The previous prime is 8971640448509. The next prime is 8971640448539. The reversal of 8971640448522 is 2258440461798.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25780575828 + ... + 25780576175.

It is an arithmetic number, because the mean of its divisors is an integer number (1160125920090).

Almost surely, 2^{8971640448522} is an apocalyptic number.

8971640448522 is an abundant number, since it is smaller than the sum of its proper divisors (9590374272918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8971640448522 is a wasteful number, since it uses less digits than its factorization.

8971640448522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51561152037.

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 8971640448522 in words is "eight trillion, nine hundred seventy-one billion, six hundred forty million, four hundred forty-eight thousand, five hundred twenty-two".