879320997522 has 162 divisors, whose sum is σ = 2131582861863. Its totient is φ = 261779641200.

The previous prime is 879320997509. The next prime is 879320997563. The reversal of 879320997522 is 225799023978.

879320997522 is a `hidden beast` number, since 8 + 79 + 32 + 0 + 9 + 9 + 7 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 439660498761 + 439660498761 = 663069^2 + 663069^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=663069.

It is a self number, because there is not a number n which added to its sum of digits gives 879320997522.

It is an unprimeable number.

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 80 ways as a sum of consecutive naturals, for example, 3107141193 + ... + 3107141475.

Almost surely, 2^879320997522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 879320997522

879320997522 is an abundant number, since it is smaller than the sum of its proper divisors (1252261864341).

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

879320997522 is a wasteful number, since it uses less digits than its factorization.

879320997522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 879320997522 in words is "eight hundred seventy-nine billion, three hundred twenty million, nine hundred ninety-seven thousand, five hundred twenty-two".