79076751885121 has 9 divisors (see below), whose sum is σ = 79161419044899. Its totient is φ = 78992175213000.

The previous prime is 79076751885097. The next prime is 79076751885137. The reversal of 79076751885121 is 12158815767097.

The square root of 79076751885121 is 8892511.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 66156896748721 + 12919855136400 = 8133689^2 + 3594420^2 .

It is not a de Polignac number, because 79076751885121 - 2³¹ = 79074604401473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79076751885181) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9346024831 + ... + 9346033291.

It is an arithmetic number, because the mean of its divisors is an integer number (8795713227211).

Almost surely, 2^{79076751885121} is an apocalyptic number.

79076751885121 is the 8892511-st square number.

79076751885121 is the 4446256-th centered octagonal number.

It is an amenable number.

79076751885121 is a deficient number, since it is larger than the sum of its proper divisors (84667159778).

79076751885121 is an frugal number, since it uses more digits than its factorization.

79076751885121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19024 (or 9512 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 67.

The spelling of 79076751885121 in words is "seventy-nine trillion, seventy-six billion, seven hundred fifty-one million, eight hundred eighty-five thousand, one hundred twenty-one".