18049693190 has 16 divisors (see below), whose sum is σ = 32491206000. Its totient is φ = 7219486560.

The previous prime is 18049693171. The next prime is 18049693213. The reversal of 18049693190 is 9139694081.

18049693190 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×18049693190² (a number of 21 digits) contains 22 as substring.

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, 211025 + ... + 283955.

It is an arithmetic number, because the mean of its divisors is an integer number (2030700375).

Almost surely, 2^18049693190 is an apocalyptic number.

18049693190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18049693190 is a deficient number, since it is larger than the sum of its proper divisors (14441512810).

18049693190 is a wasteful number, since it uses less digits than its factorization.

18049693190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97687.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 18049693190 in words is "eighteen billion, forty-nine million, six hundred ninety-three thousand, one hundred ninety".