18039880870 has 16 divisors (see below), whose sum is σ = 35423766288. Its totient is φ = 6559956640.

The previous prime is 18039880867. The next prime is 18039880879. The reversal of 18039880870 is 7808893081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18039880879) 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, 81999349 + ... + 81999568.

It is an arithmetic number, because the mean of its divisors is an integer number (2213985393).

Almost surely, 2^18039880870 is an apocalyptic number.

18039880870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18039880870 is a deficient number, since it is larger than the sum of its proper divisors (17383885418).

18039880870 is a wasteful number, since it uses less digits than its factorization.

18039880870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163998935.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 18039880870 in words is "eighteen billion, thirty-nine million, eight hundred eighty thousand, eight hundred seventy".