76129661597 has 6 divisors (see below), whose sum is σ = 83679710814. Its totient is φ = 69208783160.

The previous prime is 76129661593. The next prime is 76129661603. The reversal of 76129661597 is 79516692167.

It can be written as a sum of positive squares in only one way, i.e., 49172619001 + 26957042596 = 221749^2 + 164186^2 .

It is not a de Polignac number, because 76129661597 - 2² = 76129661593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76129661593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314585258 + ... + 314585499.

It is an arithmetic number, because the mean of its divisors is an integer number (13946618469).

Almost surely, 2^76129661597 is an apocalyptic number.

It is an amenable number.

76129661597 is a deficient number, since it is larger than the sum of its proper divisors (7550049217).

76129661597 is a wasteful number, since it uses less digits than its factorization.

76129661597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629170779 (or 629170768 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 59.

The spelling of 76129661597 in words is "seventy-six billion, one hundred twenty-nine million, six hundred sixty-one thousand, five hundred ninety-seven".