870614661378772 has 48 divisors (see below), whose sum is σ = 1560451215863232. Its totient is φ = 424790264424960.

The previous prime is 870614661378751. The next prime is 870614661378779. The reversal of 870614661378772 is 277873166416078.

It is a junction number, because it is equal to n+sod(n) for n = 870614661378695 and 870614661378704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870614661378779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535749388 + ... + 2536092700.

It is an arithmetic number, because the mean of its divisors is an integer number (32509400330484).

Almost surely, 2^{870614661378772} is an apocalyptic number.

It is an amenable number.

870614661378772 is a deficient number, since it is larger than the sum of its proper divisors (689836554484460).

870614661378772 is a wasteful number, since it uses less digits than its factorization.

870614661378772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356968 (or 356966 counting only the distinct ones).

The product of its (nonzero) digits is 796594176, while the sum is 73.

The spelling of 870614661378772 in words is "eight hundred seventy trillion, six hundred fourteen billion, six hundred sixty-one million, three hundred seventy-eight thousand, seven hundred seventy-two".