76534306731 has 16 divisors (see below), whose sum is σ = 120053815200. Its totient is φ = 48021525504.

The previous prime is 76534306721. The next prime is 76534306781. The reversal of 76534306731 is 13760343567.

It is a happy number.

It is not a de Polignac number, because 76534306731 - 2⁷ = 76534306603 is a prime.

It is a super-2 number, since 2×76534306731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76534306721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83370246 + ... + 83371163.

It is an arithmetic number, because the mean of its divisors is an integer number (7503363450).

Almost surely, 2^76534306731 is an apocalyptic number.

76534306731 is a deficient number, since it is larger than the sum of its proper divisors (43519508469).

76534306731 is a wasteful number, since it uses less digits than its factorization.

76534306731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166741435 (or 166741429 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 45.

The spelling of 76534306731 in words is "seventy-six billion, five hundred thirty-four million, three hundred six thousand, seven hundred thirty-one".