279754100117 has 2 divisors, whose sum is σ = 279754100118. Its totient is φ = 279754100116.

The previous prime is 279754100099. The next prime is 279754100137. The reversal of 279754100117 is 711001457972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270934824196 + 8819275921 = 520514^2 + 93911^2 .

It is a cyclic number.

It is not a de Polignac number, because 279754100117 - 2⁸ = 279754099861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279754100137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139877050058 + 139877050059.

It is an arithmetic number, because the mean of its divisors is an integer number (139877050059).

Almost surely, 2^279754100117 is an apocalyptic number.

It is an amenable number.

279754100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

279754100117 is an equidigital number, since it uses as much as digits as its factorization.

279754100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 44.

The spelling of 279754100117 in words is "two hundred seventy-nine billion, seven hundred fifty-four million, one hundred thousand, one hundred seventeen".