18755046838 has 8 divisors (see below), whose sum is σ = 30690076680. Its totient is φ = 8525021280.

The previous prime is 18755046781. The next prime is 18755046853. The reversal of 18755046838 is 83864055781.

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

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, 426251043 + ... + 426251086.

It is an arithmetic number, because the mean of its divisors is an integer number (3836259585).

Almost surely, 2^18755046838 is an apocalyptic number.

18755046838 is a deficient number, since it is larger than the sum of its proper divisors (11935029842).

18755046838 is a wasteful number, since it uses less digits than its factorization.

18755046838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852502142.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 18755046838 in words is "eighteen billion, seven hundred fifty-five million, forty-six thousand, eight hundred thirty-eight".