681570275078 has 64 divisors (see below), whose sum is σ = 1297737939456. Its totient is φ = 260746560000.

The previous prime is 681570275077. The next prime is 681570275093. The reversal of 681570275078 is 870572075186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681570275077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5452478 + ... + 5576078.

It is an arithmetic number, because the mean of its divisors is an integer number (20277155304).

Almost surely, 2^681570275078 is an apocalyptic number.

681570275078 is a deficient number, since it is larger than the sum of its proper divisors (616167664378).

681570275078 is a wasteful number, since it uses less digits than its factorization.

681570275078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124269.

The product of its (nonzero) digits is 6585600, while the sum is 56.

The spelling of 681570275078 in words is "six hundred eighty-one billion, five hundred seventy million, two hundred seventy-five thousand, seventy-eight".