79102020271 has 2 divisors, whose sum is σ = 79102020272. Its totient is φ = 79102020270.

The previous prime is 79102020269. The next prime is 79102020293. The reversal of 79102020271 is 17202020197.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79102020271 - 2¹ = 79102020269 is a prime.

It is a super-2 number, since 2×79102020271² (a number of 23 digits) contains 22 as substring.

Together with 79102020269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79102020671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39551010135 + 39551010136.

It is an arithmetic number, because the mean of its divisors is an integer number (39551010136).

Almost surely, 2^79102020271 is an apocalyptic number.

79102020271 is a deficient number, since it is larger than the sum of its proper divisors (1).

79102020271 is an equidigital number, since it uses as much as digits as its factorization.

79102020271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 79102020271 in words is "seventy-nine billion, one hundred two million, twenty thousand, two hundred seventy-one".