870785430977 has 8 divisors (see below), whose sum is σ = 1085654563392. Its totient is φ = 678534102000.

The previous prime is 870785430917. The next prime is 870785430989. The reversal of 870785430977 is 779034587078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 870785430977 - 2²⁶ = 870718322113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870785430917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5654450774 + ... + 5654450927.

It is an arithmetic number, because the mean of its divisors is an integer number (135706820424).

Almost surely, 2^870785430977 is an apocalyptic number.

It is an amenable number.

870785430977 is a deficient number, since it is larger than the sum of its proper divisors (214869132415).

870785430977 is a wasteful number, since it uses less digits than its factorization.

870785430977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308901719.

The product of its (nonzero) digits is 82978560, while the sum is 65.

The spelling of 870785430977 in words is "eight hundred seventy billion, seven hundred eighty-five million, four hundred thirty thousand, nine hundred seventy-seven".