18038141500 has 24 divisors (see below), whose sum is σ = 39395302128. Its totient is φ = 7215256400.

The previous prime is 18038141479. The next prime is 18038141507. The reversal of 18038141500 is 514183081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18038141507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18037642 + ... + 18038641.

It is an arithmetic number, because the mean of its divisors is an integer number (1641470922).

Almost surely, 2^18038141500 is an apocalyptic number.

18038141500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18038141500 is an abundant number, since it is smaller than the sum of its proper divisors (21357160628).

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

18038141500 is a wasteful number, since it uses less digits than its factorization.

18038141500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36076302 (or 36076290 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The spelling of 18038141500 in words is "eighteen billion, thirty-eight million, one hundred forty-one thousand, five hundred".