872787557760 has 128 divisors (see below), whose sum is σ = 2902967458560. Its totient is φ = 222624061440.

The previous prime is 872787557729. The next prime is 872787557849. The reversal of 872787557760 is 67755787278.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9837946 + ... + 9926265.

It is an arithmetic number, because the mean of its divisors is an integer number (22679433270).

Almost surely, 2^872787557760 is an apocalyptic number.

872787557760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

872787557760 is an abundant number, since it is smaller than the sum of its proper divisors (2030179900800).

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

872787557760 is a wasteful number, since it uses less digits than its factorization.

872787557760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19764256 (or 19764244 counting only the distinct ones).

The product of its (nonzero) digits is 322694400, while the sum is 69.

The spelling of 872787557760 in words is "eight hundred seventy-two billion, seven hundred eighty-seven million, five hundred fifty-seven thousand, seven hundred sixty".