2319779800459 has 4 divisors (see below), whose sum is σ = 2530668873240. Its totient is φ = 2108890727680.

The previous prime is 2319779800451. The next prime is 2319779800469. The reversal of 2319779800459 is 9540089779132.

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

It is not a de Polignac number, because 2319779800459 - 2³ = 2319779800451 is a prime.

It is a super-2 number, since 2×2319779800459² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2319779800459.

It is not an unprimeable number, because it can be changed into a prime (2319779800451) 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, 105444536374 + ... + 105444536395.

It is an arithmetic number, because the mean of its divisors is an integer number (632667218310).

Almost surely, 2^{2319779800459} is an apocalyptic number.

2319779800459 is a deficient number, since it is larger than the sum of its proper divisors (210889072781).

2319779800459 is a wasteful number, since it uses less digits than its factorization.

2319779800459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210889072780.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 2319779800459 in words is "two trillion, three hundred nineteen billion, seven hundred seventy-nine million, eight hundred thousand, four hundred fifty-nine".