679561626624 has 176 divisors, whose sum is σ = 1838619330240. Its totient is φ = 223125995520.

The previous prime is 679561626563. The next prime is 679561626647. The reversal of 679561626624 is 426626165976.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57922839 + ... + 57934569.

It is an arithmetic number, because the mean of its divisors is an integer number (10446700740).

Almost surely, 2^679561626624 is an apocalyptic number.

679561626624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679561626624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919309665120).

679561626624 is an abundant number, since it is smaller than the sum of its proper divisors (1159057703616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679561626624 is a wasteful number, since it uses less digits than its factorization.

679561626624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12036 (or 12018 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 60.

The spelling of 679561626624 in words is "six hundred seventy-nine billion, five hundred sixty-one million, six hundred twenty-six thousand, six hundred twenty-four".