870670638846215 has 16 divisors (see below), whose sum is σ = 1055221386335136. Its totient is φ = 689593039344000.

The previous prime is 870670638846157. The next prime is 870670638846233. The reversal of 870670638846215 is 512648836076078.

870670638846215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870670638846215 - 2⁴⁰ = 869571127218439 is a prime.

It is a super-2 number, since 2×870670638846215² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51431201 + ... + 66230730.

It is an arithmetic number, because the mean of its divisors is an integer number (65951336645946).

Almost surely, 2^{870670638846215} is an apocalyptic number.

870670638846215 is a deficient number, since it is larger than the sum of its proper divisors (184550747488921).

870670638846215 is a wasteful number, since it uses less digits than its factorization.

870670638846215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117676690.

The product of its (nonzero) digits is 650280960, while the sum is 71.

The spelling of 870670638846215 in words is "eight hundred seventy trillion, six hundred seventy billion, six hundred thirty-eight million, eight hundred forty-six thousand, two hundred fifteen".