864647079434351 has 16 divisors (see below), whose sum is σ = 951985076580000. Its totient is φ = 781652809555968.

The previous prime is 864647079434329. The next prime is 864647079434389. The reversal of 864647079434351 is 153434970746468.

It is not a de Polignac number, because 864647079434351 - 2¹⁰ = 864647079433327 is a prime.

It is a super-2 number, since 2×864647079434351² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864647079434251) 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, 4543552601 + ... + 4543742898.

It is an arithmetic number, because the mean of its divisors is an integer number (59499067286250).

Almost surely, 2^{864647079434351} is an apocalyptic number.

864647079434351 is a deficient number, since it is larger than the sum of its proper divisors (87337997145649).

864647079434351 is a wasteful number, since it uses less digits than its factorization.

864647079434351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9087295738.

The product of its (nonzero) digits is 1463132160, while the sum is 71.

The spelling of 864647079434351 in words is "eight hundred sixty-four trillion, six hundred forty-seven billion, seventy-nine million, four hundred thirty-four thousand, three hundred fifty-one".