18839395480 has 32 divisors (see below), whose sum is σ = 42413742000. Its totient is φ = 7531295616.

The previous prime is 18839395429. The next prime is 18839395493. The reversal of 18839395480 is 8459393881.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70647 + ... + 206566.

Almost surely, 2^18839395480 is an apocalyptic number.

18839395480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18839395480 is an abundant number, since it is smaller than the sum of its proper divisors (23574346520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18839395480 is a wasteful number, since it uses less digits than its factorization.

18839395480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278923 (or 278919 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 18839395480 in words is "eighteen billion, eight hundred thirty-nine million, three hundred ninety-five thousand, four hundred eighty".