865462425681 has 8 divisors (see below), whose sum is σ = 1318799886784. Its totient is φ = 494549957520.

The previous prime is 865462425623. The next prime is 865462425683. The reversal of 865462425681 is 186524264568.

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

It is not a de Polignac number, because 865462425681 - 2⁹ = 865462425169 is a prime.

It is a super-2 number, since 2×865462425681² (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 (865462425683) 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, 20606248210 + ... + 20606248251.

It is an arithmetic number, because the mean of its divisors is an integer number (164849985848).

Almost surely, 2^865462425681 is an apocalyptic number.

It is an amenable number.

865462425681 is a deficient number, since it is larger than the sum of its proper divisors (453337461103).

865462425681 is a wasteful number, since it uses less digits than its factorization.

865462425681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41212496471.

The product of its digits is 22118400, while the sum is 57.

The spelling of 865462425681 in words is "eight hundred sixty-five billion, four hundred sixty-two million, four hundred twenty-five thousand, six hundred eighty-one".