870638386047 has 16 divisors (see below), whose sum is σ = 1194096989568. Its totient is φ = 564031968480.

The previous prime is 870638385949. The next prime is 870638386097. The reversal of 870638386047 is 740683836078.

It is not a de Polignac number, because 870638386047 - 2²⁸ = 870369950591 is a prime.

It is a super-2 number, since 2×870638386047² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870638386097) 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, 28644973 + ... + 28675350.

It is an arithmetic number, because the mean of its divisors is an integer number (74631061848).

Almost surely, 2^870638386047 is an apocalyptic number.

870638386047 is a deficient number, since it is larger than the sum of its proper divisors (323458603521).

870638386047 is a wasteful number, since it uses less digits than its factorization.

870638386047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57320470.

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 870638386047 in words is "eight hundred seventy billion, six hundred thirty-eight million, three hundred eighty-six thousand, forty-seven".