79054042271 has 2 divisors, whose sum is σ = 79054042272. Its totient is φ = 79054042270.

The previous prime is 79054042267. The next prime is 79054042289. The reversal of 79054042271 is 17224045097.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79054042271 - 2² = 79054042267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79054042231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39527021135 + 39527021136.

It is an arithmetic number, because the mean of its divisors is an integer number (39527021136).

Almost surely, 2^79054042271 is an apocalyptic number.

79054042271 is a deficient number, since it is larger than the sum of its proper divisors (1).

79054042271 is an equidigital number, since it uses as much as digits as its factorization.

79054042271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 79054042271 in words is "seventy-nine billion, fifty-four million, forty-two thousand, two hundred seventy-one".