864590263681 has 8 divisors (see below), whose sum is σ = 866556848000. Its totient is φ = 862624616112.

The previous prime is 864590263673. The next prime is 864590263703. The reversal of 864590263681 is 186362095468.

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 864590263681 - 2³ = 864590263673 is a prime.

It is a super-2 number, since 2×864590263681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864590266681) 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, 1630696 + ... + 2094838.

It is an arithmetic number, because the mean of its divisors is an integer number (108319606000).

Almost surely, 2^864590263681 is an apocalyptic number.

It is an amenable number.

864590263681 is a deficient number, since it is larger than the sum of its proper divisors (1966584319).

864590263681 is a wasteful number, since it uses less digits than its factorization.

864590263681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468375.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 864590263681 in words is "eight hundred sixty-four billion, five hundred ninety million, two hundred sixty-three thousand, six hundred eighty-one".