117844567279 has 2 divisors, whose sum is σ = 117844567280. Its totient is φ = 117844567278.

The previous prime is 117844567241. The next prime is 117844567283. The reversal of 117844567279 is 972765448711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117844567279 - 2¹³ = 117844559087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117844562279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58922283639 + 58922283640.

It is an arithmetic number, because the mean of its divisors is an integer number (58922283640).

Almost surely, 2^117844567279 is an apocalyptic number.

117844567279 is a deficient number, since it is larger than the sum of its proper divisors (1).

117844567279 is an equidigital number, since it uses as much as digits as its factorization.

117844567279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 61.

The spelling of 117844567279 in words is "one hundred seventeen billion, eight hundred forty-four million, five hundred sixty-seven thousand, two hundred seventy-nine".