79456127522 has 18 divisors (see below), whose sum is σ = 122515187697. Its totient is φ = 38647156824.

The previous prime is 79456127449. The next prime is 79456127533. The reversal of 79456127522 is 22572165497.

It can be written as a sum of positive squares in 2 ways, for example, as 64104669721 + 15351457801 = 253189^2 + 123901^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=199319.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 14746913 + ... + 14752299.

Almost surely, 2^79456127522 is an apocalyptic number.

79456127522 is a deficient number, since it is larger than the sum of its proper divisors (43059060175).

79456127522 is an frugal number, since it uses more digits than its factorization.

79456127522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850 (or 5426 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

Multiplying 79456127522 by its sum of digits (50), we get a square (3972806376100 = 1993190²).

The spelling of 79456127522 in words is "seventy-nine billion, four hundred fifty-six million, one hundred twenty-seven thousand, five hundred twenty-two".