860664393647 has 8 divisors (see below), whose sum is σ = 888443229312. Its totient is φ = 832886524800.

The previous prime is 860664393629. The next prime is 860664393649. The reversal of 860664393647 is 746393466068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 860664393647 - 2²⁰ = 860663345071 is a prime.

It is a super-4 number, since 4×860664393647⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 860664393647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860664393649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856747 + ... + 2273507.

It is an arithmetic number, because the mean of its divisors is an integer number (111055403664).

Almost surely, 2^860664393647 is an apocalyptic number.

860664393647 is a deficient number, since it is larger than the sum of its proper divisors (27778835665).

860664393647 is a wasteful number, since it uses less digits than its factorization.

860664393647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483409.

The product of its (nonzero) digits is 94058496, while the sum is 62.

The spelling of 860664393647 in words is "eight hundred sixty billion, six hundred sixty-four million, three hundred ninety-three thousand, six hundred forty-seven".