681092080479 has 24 divisors (see below), whose sum is σ = 1010435982192. Its totient is φ = 441768850560.

The previous prime is 681092080469. The next prime is 681092080499. The reversal of 681092080479 is 974080290186.

681092080479 is a `hidden beast` number, since 6 + 8 + 1 + 0 + 92 + 0 + 80 + 479 = 666.

It is not a de Polignac number, because 681092080479 - 2⁵ = 681092080447 is a prime.

It is a super-2 number, since 2×681092080479² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681092080469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10801387 + ... + 10864259.

It is an arithmetic number, because the mean of its divisors is an integer number (42101499258).

Almost surely, 2^681092080479 is an apocalyptic number.

681092080479 is a deficient number, since it is larger than the sum of its proper divisors (329343901713).

681092080479 is a wasteful number, since it uses less digits than its factorization.

681092080479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95447 (or 95444 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 681092080479 in words is "six hundred eighty-one billion, ninety-two million, eighty thousand, four hundred seventy-nine".