79574211361 has 2 divisors, whose sum is σ = 79574211362. Its totient is φ = 79574211360.

The previous prime is 79574211341. The next prime is 79574211413. The reversal of 79574211361 is 16311247597.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52546851361 + 27027360000 = 229231^2 + 164400^2 .

It is a cyclic number.

It is not a de Polignac number, because 79574211361 - 2⁵ = 79574211329 is a prime.

It is a super-2 number, since 2×79574211361² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79574211341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39787105680 + 39787105681.

It is an arithmetic number, because the mean of its divisors is an integer number (39787105681).

Almost surely, 2^79574211361 is an apocalyptic number.

It is an amenable number.

79574211361 is a deficient number, since it is larger than the sum of its proper divisors (1).

79574211361 is an equidigital number, since it uses as much as digits as its factorization.

79574211361 is an evil number, because the sum of its binary digits is even.

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

The spelling of 79574211361 in words is "seventy-nine billion, five hundred seventy-four million, two hundred eleven thousand, three hundred sixty-one".