680539700043 has 36 divisors (see below), whose sum is σ = 1143727986960. Its totient is φ = 388799532576.

The previous prime is 680539700041. The next prime is 680539700051. The reversal of 680539700043 is 340007935086.

680539700043 is a `hidden beast` number, since 6 + 8 + 0 + 539 + 70 + 0 + 0 + 43 = 666.

It is not a de Polignac number, because 680539700043 - 2¹ = 680539700041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680539700041) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2012421 + ... + 2326137.

It is an arithmetic number, because the mean of its divisors is an integer number (31770221860).

Almost surely, 2^680539700043 is an apocalyptic number.

680539700043 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

680539700043 is a deficient number, since it is larger than the sum of its proper divisors (463188286917).

680539700043 is a wasteful number, since it uses less digits than its factorization.

680539700043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318656 (or 318646 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 680539700043 in words is "six hundred eighty billion, five hundred thirty-nine million, seven hundred thousand, forty-three".