679868062580 has 54 divisors (see below), whose sum is σ = 1660883610834. Its totient is φ = 233088771552.

The previous prime is 679868062553. The next prime is 679868062583. The reversal of 679868062580 is 85260868976.

It can be written as a sum of positive squares in only one way, i.e., 543894450064 + 135973612516 = 737492^2 + 368746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679868062583) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25799051 + ... + 25825389.

Almost surely, 2^679868062580 is an apocalyptic number.

It is an amenable number.

679868062580 is an abundant number, since it is smaller than the sum of its proper divisors (981015548254).

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

679868062580 is an frugal number, since it uses more digits than its factorization.

679868062580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52701 (or 26353 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 679868062580 in words is "six hundred seventy-nine billion, eight hundred sixty-eight million, sixty-two thousand, five hundred eighty".