80915759492279 has 2 divisors, whose sum is σ = 80915759492280. Its totient is φ = 80915759492278.

The previous prime is 80915759492213. The next prime is 80915759492297. The reversal of 80915759492279 is 97229495751908.

Together with next prime (80915759492297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80915759492279 - 2³² = 80911464524983 is a prime.

It is a super-2 number, since 2×80915759492279² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80915759492179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40457879746139 + 40457879746140.

It is an arithmetic number, because the mean of its divisors is an integer number (40457879746140).

Almost surely, 2^{80915759492279} is an apocalyptic number.

80915759492279 is a deficient number, since it is larger than the sum of its proper divisors (1).

80915759492279 is an equidigital number, since it uses as much as digits as its factorization.

80915759492279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1028764800, while the sum is 77.

The spelling of 80915759492279 in words is "eighty trillion, nine hundred fifteen billion, seven hundred fifty-nine million, four hundred ninety-two thousand, two hundred seventy-nine".