681176476531 has 4 divisors (see below), whose sum is σ = 692721840600. Its totient is φ = 669631112464.

The previous prime is 681176476529. The next prime is 681176476573. The reversal of 681176476531 is 135674671186.

681176476531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 681176476531 - 2¹ = 681176476529 is a prime.

It is a super-2 number, since 2×681176476531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681176476511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5772681946 + ... + 5772682063.

It is an arithmetic number, because the mean of its divisors is an integer number (173180460150).

Almost surely, 2^681176476531 is an apocalyptic number.

681176476531 is a deficient number, since it is larger than the sum of its proper divisors (11545364069).

681176476531 is a wasteful number, since it uses less digits than its factorization.

681176476531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11545364068.

The product of its digits is 5080320, while the sum is 55.

The spelling of 681176476531 in words is "six hundred eighty-one billion, one hundred seventy-six million, four hundred seventy-six thousand, five hundred thirty-one".