68799961580 has 48 divisors (see below), whose sum is σ = 165148635456. Its totient is φ = 23584454400.

The previous prime is 68799961541. The next prime is 68799961589. The reversal of 68799961580 is 8516999786.

It is a self number, because there is not a number n which added to its sum of digits gives 68799961580.

It is not an unprimeable number, because it can be changed into a prime (68799961589) 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, 827930 + ... + 907230.

It is an arithmetic number, because the mean of its divisors is an integer number (3440596572).

Almost surely, 2^68799961580 is an apocalyptic number.

It is an amenable number.

68799961580 is an abundant number, since it is smaller than the sum of its proper divisors (96348673876).

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

68799961580 is a wasteful number, since it uses less digits than its factorization.

68799961580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85514 (or 85512 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 68.

The spelling of 68799961580 in words is "sixty-eight billion, seven hundred ninety-nine million, nine hundred sixty-one thousand, five hundred eighty".