79257819255 has 64 divisors (see below), whose sum is σ = 130234728960. Its totient is φ = 41148518400.

The previous prime is 79257819253. The next prime is 79257819269. The reversal of 79257819255 is 55291875297.

It is not a de Polignac number, because 79257819255 - 2¹ = 79257819253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79257819253) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 36675375 + ... + 36677535.

It is an arithmetic number, because the mean of its divisors is an integer number (2034917640).

Almost surely, 2^79257819255 is an apocalyptic number.

79257819255 is a deficient number, since it is larger than the sum of its proper divisors (50976909705).

79257819255 is a wasteful number, since it uses less digits than its factorization.

79257819255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its digits is 15876000, while the sum is 60.

The spelling of 79257819255 in words is "seventy-nine billion, two hundred fifty-seven million, eight hundred nineteen thousand, two hundred fifty-five".