115553980279 has 4 divisors (see below), whose sum is σ = 117181501200. Its totient is φ = 113926459360.

The previous prime is 115553980253. The next prime is 115553980309. The reversal of 115553980279 is 972089355511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115553980279 - 2⁹ = 115553979767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115553980079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813760354 + ... + 813760495.

It is an arithmetic number, because the mean of its divisors is an integer number (29295375300).

Almost surely, 2^115553980279 is an apocalyptic number.

115553980279 is a deficient number, since it is larger than the sum of its proper divisors (1627520921).

115553980279 is an equidigital number, since it uses as much as digits as its factorization.

115553980279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627520920.

The product of its (nonzero) digits is 3402000, while the sum is 55.

The spelling of 115553980279 in words is "one hundred fifteen billion, five hundred fifty-three million, nine hundred eighty thousand, two hundred seventy-nine".