877399396416 has 189 divisors, whose sum is σ = 2600715648063. Its totient is φ = 282807256320.

The previous prime is 877399396399. The next prime is 877399396421. The reversal of 877399396416 is 614693993778.

The square root of 877399396416 is 936696.

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

877399396416 is a `hidden beast` number, since 8 + 7 + 7 + 39 + 93 + 96 + 416 = 666.

It is a super-2 number, since 2×877399396416² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 696901195 + ... + 696902453.

Almost surely, 2^877399396416 is an apocalyptic number.

877399396416 is the 936696-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877399396416

877399396416 is an abundant number, since it is smaller than the sum of its proper divisors (1723316251647).

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

877399396416 is an equidigital number, since it uses as much as digits as its factorization.

877399396416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598 (or 1295 counting only the distinct ones).

The product of its digits is 370355328, while the sum is 72.

The spelling of 877399396416 in words is "eight hundred seventy-seven billion, three hundred ninety-nine million, three hundred ninety-six thousand, four hundred sixteen".