76747696545 has 32 divisors (see below), whose sum is σ = 140021142912. Its totient is φ = 35560922112.

The previous prime is 76747696513. The next prime is 76747696547. The reversal of 76747696545 is 54569674767.

It is not a de Polignac number, because 76747696545 - 2⁵ = 76747696513 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (76747696547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11572507 + ... + 11579136.

It is an arithmetic number, because the mean of its divisors is an integer number (4375660716).

Almost surely, 2^76747696545 is an apocalyptic number.

It is an amenable number.

76747696545 is a deficient number, since it is larger than the sum of its proper divisors (63273446367).

76747696545 is a wasteful number, since it uses less digits than its factorization.

76747696545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23151681.

The product of its digits is 266716800, while the sum is 66.

The spelling of 76747696545 in words is "seventy-six billion, seven hundred forty-seven million, six hundred ninety-six thousand, five hundred forty-five".