879808356361 has 27 divisors (see below), whose sum is σ = 981691904487. Its totient is φ = 787904040000.

The previous prime is 879808356347. The next prime is 879808356391. The reversal of 879808356361 is 163653808978.

The square root of 879808356361 is 937981.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1464516361 + 878343840000 = 38269^2 + 937200^2 .

It is not a de Polignac number, because 879808356361 - 2¹⁵ = 879808323593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 879808356293 and 879808356302.

It is not an unprimeable number, because it can be changed into a prime (879808356311) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 732562561 + ... + 732563761.

Almost surely, 2^879808356361 is an apocalyptic number.

879808356361 is the 937981-st square number.

879808356361 is the 468991-st centered octagonal number.

It is an amenable number.

879808356361 is a deficient number, since it is larger than the sum of its proper divisors (101883548126).

879808356361 is an frugal number, since it uses more digits than its factorization.

879808356361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 64.

Multiplying 879808356361 by its sum of digits (64), we get a square (56307734807104 = 7503848²).

The spelling of 879808356361 in words is "eight hundred seventy-nine billion, eight hundred eight million, three hundred fifty-six thousand, three hundred sixty-one".