18748056351 has 16 divisors (see below), whose sum is σ = 25618844160. Its totient is φ = 12191799360.

The previous prime is 18748056323. The next prime is 18748056427. The reversal of 18748056351 is 15365084781.

It is not a de Polignac number, because 18748056351 - 2⁵ = 18748056319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18748056351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18748056451) 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 15 ways as a sum of consecutive naturals, for example, 456870 + ... + 496211.

It is an arithmetic number, because the mean of its divisors is an integer number (1601177760).

Almost surely, 2^18748056351 is an apocalyptic number.

18748056351 is a deficient number, since it is larger than the sum of its proper divisors (6870787809).

18748056351 is an equidigital number, since it uses as much as digits as its factorization.

18748056351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953246.

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 18748056351 in words is "eighteen billion, seven hundred forty-eight million, fifty-six thousand, three hundred fifty-one".