79201617625 has 24 divisors (see below), whose sum is σ = 107031876120. Its totient is φ = 58487332800.

The previous prime is 79201617587. The next prime is 79201617637. The reversal of 79201617625 is 52671610297.

It can be written as a sum of positive squares in 12 ways, for example, as 72754812361 + 6446805264 = 269731^2 + 80292^2 .

It is not a de Polignac number, because 79201617625 - 2¹⁹ = 79201093337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1853470 + ... + 1895719.

It is an arithmetic number, because the mean of its divisors is an integer number (4459661505).

Almost surely, 2^79201617625 is an apocalyptic number.

It is an amenable number.

79201617625 is a deficient number, since it is larger than the sum of its proper divisors (27830258495).

79201617625 is a wasteful number, since it uses less digits than its factorization.

79201617625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749230 (or 3749207 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 79201617625 in words is "seventy-nine billion, two hundred one million, six hundred seventeen thousand, six hundred twenty-five".