80215702279 has 2 divisors, whose sum is σ = 80215702280. Its totient is φ = 80215702278.

The previous prime is 80215702253. The next prime is 80215702319. The reversal of 80215702279 is 97220751208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80215702279 - 2¹¹ = 80215700231 is a prime.

It is a super-2 number, since 2×80215702279² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80215702979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40107851139 + 40107851140.

It is an arithmetic number, because the mean of its divisors is an integer number (40107851140).

Almost surely, 2^80215702279 is an apocalyptic number.

80215702279 is a deficient number, since it is larger than the sum of its proper divisors (1).

80215702279 is an equidigital number, since it uses as much as digits as its factorization.

80215702279 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 43.

The spelling of 80215702279 in words is "eighty billion, two hundred fifteen million, seven hundred two thousand, two hundred seventy-nine".