18738056254 has 8 divisors (see below), whose sum is σ = 29329131600. Its totient is φ = 8961679056.

The previous prime is 18738056213. The next prime is 18738056263. The reversal of 18738056254 is 45265083781.

It is a happy number.

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

It is a super-2 number, since 2×18738056254² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18738056198 and 18738056207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203674479 + ... + 203674570.

It is an arithmetic number, because the mean of its divisors is an integer number (3666141450).

Almost surely, 2^18738056254 is an apocalyptic number.

18738056254 is a deficient number, since it is larger than the sum of its proper divisors (10591075346).

18738056254 is a wasteful number, since it uses less digits than its factorization.

18738056254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407349074.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 18738056254 in words is "eighteen billion, seven hundred thirty-eight million, fifty-six thousand, two hundred fifty-four".