688413023682 has 64 divisors (see below), whose sum is σ = 1468545914880. Its totient is φ = 214388907264.

The previous prime is 688413023681. The next prime is 688413023687. The reversal of 688413023682 is 286320314886.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (688413023681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7546419 + ... + 7637097.

It is an arithmetic number, because the mean of its divisors is an integer number (22946029920).

Almost surely, 2^688413023682 is an apocalyptic number.

688413023682 is an abundant number, since it is smaller than the sum of its proper divisors (780132891198).

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

688413023682 is a wasteful number, since it uses less digits than its factorization.

688413023682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91247.

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 688413023682 in words is "six hundred eighty-eight billion, four hundred thirteen million, twenty-three thousand, six hundred eighty-two".