79061224391 has 2 divisors, whose sum is σ = 79061224392. Its totient is φ = 79061224390.

The previous prime is 79061224379. The next prime is 79061224399. The reversal of 79061224391 is 19342216097.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79061224391 - 2¹⁴ = 79061208007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79061224399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39530612195 + 39530612196.

It is an arithmetic number, because the mean of its divisors is an integer number (39530612196).

Almost surely, 2^79061224391 is an apocalyptic number.

79061224391 is a deficient number, since it is larger than the sum of its proper divisors (1).

79061224391 is an equidigital number, since it uses as much as digits as its factorization.

79061224391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 79061224391 in words is "seventy-nine billion, sixty-one million, two hundred twenty-four thousand, three hundred ninety-one".