877555853664 has 288 divisors, whose sum is σ = 2774630218752. Its totient is φ = 241895808000.

The previous prime is 877555853663. The next prime is 877555853677. The reversal of 877555853664 is 466358555778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (877555853663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48258654 + ... + 48276834.

It is an arithmetic number, because the mean of its divisors is an integer number (9634132704).

Almost surely, 2^877555853664 is an apocalyptic number.

877555853664 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877555853664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387315109376).

877555853664 is an abundant number, since it is smaller than the sum of its proper divisors (1897074365088).

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

877555853664 is a wasteful number, since it uses less digits than its factorization.

877555853664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18570 (or 18555 counting only the distinct ones).

The product of its digits is 846720000, while the sum is 69.

The spelling of 877555853664 in words is "eight hundred seventy-seven billion, five hundred fifty-five million, eight hundred fifty-three thousand, six hundred sixty-four".