18932119508 has 12 divisors (see below), whose sum is σ = 33134556672. Its totient is φ = 9465103320.

The previous prime is 18932119501. The next prime is 18932119537. The reversal of 18932119508 is 80591123981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18932119501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193610 + ... + 274497.

It is an arithmetic number, because the mean of its divisors is an integer number (2761213056).

Almost surely, 2^18932119508 is an apocalyptic number.

It is an amenable number.

18932119508 is a deficient number, since it is larger than the sum of its proper divisors (14202437164).

18932119508 is a wasteful number, since it uses less digits than its factorization.

18932119508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478222 (or 478220 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 47.

The spelling of 18932119508 in words is "eighteen billion, nine hundred thirty-two million, one hundred nineteen thousand, five hundred eight".