79143032517 has 16 divisors (see below), whose sum is σ = 111866178240. Its totient is φ = 49598445312.

The previous prime is 79143032509. The next prime is 79143032599. The reversal of 79143032517 is 71523034197.

It is not a de Polignac number, because 79143032517 - 2³ = 79143032509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79143032317) 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 15 ways as a sum of consecutive naturals, for example, 893683 + ... + 978240.

It is an arithmetic number, because the mean of its divisors is an integer number (6991636140).

Almost surely, 2^79143032517 is an apocalyptic number.

It is an amenable number.

79143032517 is a deficient number, since it is larger than the sum of its proper divisors (32723145723).

79143032517 is a wasteful number, since it uses less digits than its factorization.

79143032517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872772.

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 79143032517 in words is "seventy-nine billion, one hundred forty-three million, thirty-two thousand, five hundred seventeen".