870847345655 has 32 divisors (see below), whose sum is σ = 1201424555520. Its totient is φ = 593599547520.

The previous prime is 870847345603. The next prime is 870847345721. The reversal of 870847345655 is 556543748078.

It is not a de Polignac number, because 870847345655 - 2²⁶ = 870780236791 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6036101 + ... + 6178689.

It is an arithmetic number, because the mean of its divisors is an integer number (37544517360).

Almost surely, 2^870847345655 is an apocalyptic number.

870847345655 is a deficient number, since it is larger than the sum of its proper divisors (330577209865).

870847345655 is a wasteful number, since it uses less digits than its factorization.

870847345655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143639.

The product of its (nonzero) digits is 112896000, while the sum is 62.

The spelling of 870847345655 in words is "eight hundred seventy billion, eight hundred forty-seven million, three hundred forty-five thousand, six hundred fifty-five".