870866303631 has 16 divisors (see below), whose sum is σ = 1201477449600. Its totient is φ = 560425765088.

The previous prime is 870866303621. The next prime is 870866303633. The reversal of 870866303631 is 136303668078.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 870866303631 - 2⁵ = 870866303599 is a prime.

It is a super-2 number, since 2×870866303631² (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 (870866303633) 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, 804621 + ... + 1545686.

It is an arithmetic number, because the mean of its divisors is an integer number (75092340600).

Almost surely, 2^870866303631 is an apocalyptic number.

870866303631 is a deficient number, since it is larger than the sum of its proper divisors (330611145969).

870866303631 is a wasteful number, since it uses less digits than its factorization.

870866303631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354598.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 870866303631 in words is "eight hundred seventy billion, eight hundred sixty-six million, three hundred three thousand, six hundred thirty-one".