23278370199959 has 16 divisors (see below), whose sum is σ = 27147455712000. Its totient is φ = 19952397537912.

The previous prime is 23278370199919. The next prime is 23278370200021. The reversal of 23278370199959 is 95999107387232.

It is not a de Polignac number, because 23278370199959 - 2¹⁶ = 23278370134423 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 (23278370199919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13474484 + ... + 15103590.

It is an arithmetic number, because the mean of its divisors is an integer number (1696715982000).

Almost surely, 2^{23278370199959} is an apocalyptic number.

23278370199959 is a deficient number, since it is larger than the sum of its proper divisors (3869085512041).

23278370199959 is an equidigital number, since it uses as much as digits as its factorization.

23278370199959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670787 (or 1670773 counting only the distinct ones).

The product of its (nonzero) digits is 462944160, while the sum is 74.

The spelling of 23278370199959 in words is "twenty-three trillion, two hundred seventy-eight billion, three hundred seventy million, one hundred ninety-nine thousand, nine hundred fifty-nine".