870311085655 has 16 divisors (see below), whose sum is σ = 1139336160768. Its totient is φ = 632942500000.

The previous prime is 870311085653. The next prime is 870311085689. The reversal of 870311085655 is 556580113078.

It is not a de Polignac number, because 870311085655 - 2¹ = 870311085653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 870311085599 and 870311085608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870311085653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4395030 + ... + 4588780.

It is an arithmetic number, because the mean of its divisors is an integer number (71208510048).

Almost surely, 2^870311085655 is an apocalyptic number.

870311085655 is a deficient number, since it is larger than the sum of its proper divisors (269025075113).

870311085655 is a wasteful number, since it uses less digits than its factorization.

870311085655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275438.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 870311085655 in words is "eight hundred seventy billion, three hundred eleven million, eighty-five thousand, six hundred fifty-five".