679005664324 has 81 divisors (see below), whose sum is σ = 1320552244389. Its totient is φ = 305348110080.

The previous prime is 679005664297. The next prime is 679005664327. The reversal of 679005664324 is 423466500976.

The square root of 679005664324 is 824018.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 397426854724 + 281578809600 = 630418^2 + 530640^2 .

It is a super-2 number, since 2×679005664324² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679005664327) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 878402802 + ... + 878403574.

Almost surely, 2^679005664324 is an apocalyptic number.

679005664324 is the 824018-th square number.

It is an amenable number.

679005664324 is a deficient number, since it is larger than the sum of its proper divisors (641546580065).

679005664324 is an equidigital number, since it uses as much as digits as its factorization.

679005664324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 679005664324 in words is "six hundred seventy-nine billion, five million, six hundred sixty-four thousand, three hundred twenty-four".