79357804985951 has 2 divisors, whose sum is σ = 79357804985952. Its totient is φ = 79357804985950.

The previous prime is 79357804985891. The next prime is 79357804985969. The reversal of 79357804985951 is 15958940875397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79357804985951 - 2¹⁴ = 79357804969567 is a prime.

It is a super-2 number, since 2×79357804985951² (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 (79357804985551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39678902492975 + 39678902492976.

It is an arithmetic number, because the mean of its divisors is an integer number (39678902492976).

Almost surely, 2^{79357804985951} is an apocalyptic number.

79357804985951 is a deficient number, since it is larger than the sum of its proper divisors (1).

79357804985951 is an equidigital number, since it uses as much as digits as its factorization.

79357804985951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216000, while the sum is 80.

The spelling of 79357804985951 in words is "seventy-nine trillion, three hundred fifty-seven billion, eight hundred four million, nine hundred eighty-five thousand, nine hundred fifty-one".