79133747639 has 2 divisors, whose sum is σ = 79133747640. Its totient is φ = 79133747638.

The previous prime is 79133747617. The next prime is 79133747689. The reversal of 79133747639 is 93674733197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79133747639 - 2⁸ = 79133747383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79133747689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39566873819 + 39566873820.

It is an arithmetic number, because the mean of its divisors is an integer number (39566873820).

Almost surely, 2^79133747639 is an apocalyptic number.

79133747639 is a deficient number, since it is larger than the sum of its proper divisors (1).

79133747639 is an equidigital number, since it uses as much as digits as its factorization.

79133747639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18003384, while the sum is 59.

The spelling of 79133747639 in words is "seventy-nine billion, one hundred thirty-three million, seven hundred forty-seven thousand, six hundred thirty-nine".