681292552704 has 80 divisors (see below), whose sum is σ = 1921771070208. Its totient is φ = 213738831872.

The previous prime is 681292552663. The next prime is 681292552739. The reversal of 681292552704 is 407255292186.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13019472 + ... + 13071695.

Almost surely, 2^681292552704 is an apocalyptic number.

681292552704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

681292552704 is an abundant number, since it is smaller than the sum of its proper divisors (1240478517504).

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

681292552704 is a wasteful number, since it uses less digits than its factorization.

681292552704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26091205 (or 26091189 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 681292552704 in words is "six hundred eighty-one billion, two hundred ninety-two million, five hundred fifty-two thousand, seven hundred four".