680754081402 has 16 divisors (see below), whose sum is σ = 1512786847680. Its totient is φ = 226918027116.

The previous prime is 680754081389. The next prime is 680754081431. The reversal of 680754081402 is 204180457086.

680754081402 is a `hidden beast` number, since 68 + 0 + 7 + 540 + 8 + 1 + 40 + 2 = 666.

680754081402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×680754081402² (a number of 24 digits) contains 22 as substring.

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, 6303278478 + ... + 6303278585.

It is an arithmetic number, because the mean of its divisors is an integer number (94549177980).

Almost surely, 2^680754081402 is an apocalyptic number.

680754081402 is an abundant number, since it is smaller than the sum of its proper divisors (832032766278).

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

680754081402 is a wasteful number, since it uses less digits than its factorization.

680754081402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12606557074 (or 12606557068 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 680754081402 in words is "six hundred eighty billion, seven hundred fifty-four million, eighty-one thousand, four hundred two".