18338718370 has 16 divisors (see below), whose sum is σ = 37725363648. Its totient is φ = 6287560560.

The previous prime is 18338718341. The next prime is 18338718401. The reversal of 18338718370 is 7381783381.

It is a happy 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, 130990776 + ... + 130990915.

It is an arithmetic number, because the mean of its divisors is an integer number (2357835228).

Almost surely, 2^18338718370 is an apocalyptic number.

18338718370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18338718370 is an abundant number, since it is smaller than the sum of its proper divisors (19386645278).

18338718370 is a wasteful number, since it uses less digits than its factorization.

18338718370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261981705.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 18338718370 in words is "eighteen billion, three hundred thirty-eight million, seven hundred eighteen thousand, three hundred seventy".