688802461320 has 64 divisors (see below), whose sum is σ = 2066482808640. Its totient is φ = 183673952000.

The previous prime is 688802461309. The next prime is 688802461387. The reversal of 688802461320 is 23164208886.

688802461320 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×688802461320² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 688802461320.

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, 3800770 + ... + 3977870.

It is an arithmetic number, because the mean of its divisors is an integer number (32288793885).

Almost surely, 2^688802461320 is an apocalyptic number.

688802461320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

688802461320 is an abundant number, since it is smaller than the sum of its proper divisors (1377680347320).

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

688802461320 is a wasteful number, since it uses less digits than its factorization.

688802461320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209526 (or 209522 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 688802461320 in words is "six hundred eighty-eight billion, eight hundred two million, four hundred sixty-one thousand, three hundred twenty".