79091186225 has 6 divisors (see below), whose sum is σ = 98073070950. Its totient is φ = 63272948960.

The previous prime is 79091186219. The next prime is 79091186233. The reversal of 79091186225 is 52268119097.

It can be written as a sum of positive squares in 3 ways, for example, as 1944457216 + 77146729009 = 44096^2 + 277753^2 .

It is not a de Polignac number, because 79091186225 - 2⁸ = 79091185969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1581823700 + ... + 1581823749.

It is an arithmetic number, because the mean of its divisors is an integer number (16345511825).

Almost surely, 2^79091186225 is an apocalyptic number.

It is an amenable number.

79091186225 is a deficient number, since it is larger than the sum of its proper divisors (18981884725).

79091186225 is a wasteful number, since it uses less digits than its factorization.

79091186225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163647459 (or 3163647454 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 79091186225 in words is "seventy-nine billion, ninety-one million, one hundred eighty-six thousand, two hundred twenty-five".