79190769745 has 16 divisors (see below), whose sum is σ = 96352665552. Its totient is φ = 62470517760.

The previous prime is 79190769743. The next prime is 79190769761. The reversal of 79190769745 is 54796709197.

It can be written as a sum of positive squares in 8 ways, for example, as 13666545216 + 65524224529 = 116904^2 + 255977^2 .

It is not a de Polignac number, because 79190769745 - 2¹ = 79190769743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79190769743) 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, 1751949 + ... + 1796581.

It is an arithmetic number, because the mean of its divisors is an integer number (6022041597).

Almost surely, 2^79190769745 is an apocalyptic number.

It is an amenable number.

79190769745 is a deficient number, since it is larger than the sum of its proper divisors (17161895807).

79190769745 is a wasteful number, since it uses less digits than its factorization.

79190769745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49572.

The product of its (nonzero) digits is 30005640, while the sum is 64.

The spelling of 79190769745 in words is "seventy-nine billion, one hundred ninety million, seven hundred sixty-nine thousand, seven hundred forty-five".