18779313243 has 8 divisors (see below), whose sum is σ = 25040550400. Its totient is φ = 12518809128.

The previous prime is 18779313229. The next prime is 18779313253. The reversal of 18779313243 is 34231397781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18779313243 - 2⁴ = 18779313227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18779313192 and 18779313201.

It is not an unprimeable number, because it can be changed into a prime (18779313253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120403 + ... + 228156.

It is an arithmetic number, because the mean of its divisors is an integer number (3130068800).

Almost surely, 2^18779313243 is an apocalyptic number.

18779313243 is a deficient number, since it is larger than the sum of its proper divisors (6261237157).

18779313243 is a wasteful number, since it uses less digits than its factorization.

18779313243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366521.

The product of its digits is 762048, while the sum is 48.

The spelling of 18779313243 in words is "eighteen billion, seven hundred seventy-nine million, three hundred thirteen thousand, two hundred forty-three".