870402118656 has 528 divisors, whose sum is σ = 2853762984960. Its totient is φ = 234519183360.

The previous prime is 870402118643. The next prime is 870402118657. The reversal of 870402118656 is 656811204078.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870402118657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 775068111 + ... + 775069233.

Almost surely, 2^870402118656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870402118656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426881492480).

870402118656 is an abundant number, since it is smaller than the sum of its proper divisors (1983360866304).

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

870402118656 is a wasteful number, since it uses less digits than its factorization.

870402118656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 870402118656 in words is "eight hundred seventy billion, four hundred two million, one hundred eighteen thousand, six hundred fifty-six".