679012564514 has 8 divisors (see below), whose sum is σ = 1018593270300. Its totient is φ = 339481474416.

The previous prime is 679012564511. The next prime is 679012564567. The reversal of 679012564514 is 415465210976.

It can be written as a sum of positive squares in 2 ways, for example, as 565628838889 + 113383725625 = 752083^2 + 336725^2 .

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

It is a super-2 number, since 2×679012564514² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679012564511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12369689 + ... + 12424460.

Almost surely, 2^679012564514 is an apocalyptic number.

679012564514 is a deficient number, since it is larger than the sum of its proper divisors (339580705786).

679012564514 is a wasteful number, since it uses less digits than its factorization.

679012564514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24807844.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 679012564514 in words is "six hundred seventy-nine billion, twelve million, five hundred sixty-four thousand, five hundred fourteen".