878027163122 has 18 divisors (see below), whose sum is σ = 1321486349223. Its totient is φ = 437536688512.

The previous prime is 878027163103. The next prime is 878027163131. The reversal of 878027163122 is 221361720878.

It can be written as a sum of positive squares in 5 ways, for example, as 467977759921 + 410049403201 = 684089^2 + 640351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=662581.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 467781248 + ... + 467783124.

Almost surely, 2^878027163122 is an apocalyptic number.

878027163122 is a deficient number, since it is larger than the sum of its proper divisors (443459186101).

878027163122 is an frugal number, since it uses more digits than its factorization.

878027163122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 878027163122 in words is "eight hundred seventy-eight billion, twenty-seven million, one hundred sixty-three thousand, one hundred twenty-two".