18138274510 has 16 divisors (see below), whose sum is σ = 32674849200. Its totient is φ = 7249542016.

The previous prime is 18138274481. The next prime is 18138274519. The reversal of 18138274510 is 1547283181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18138274519) 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, 707755 + ... + 732934.

It is an arithmetic number, because the mean of its divisors is an integer number (2042178075).

Almost surely, 2^18138274510 is an apocalyptic number.

18138274510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18138274510 is a deficient number, since it is larger than the sum of its proper divisors (14536574690).

18138274510 is a wasteful number, since it uses less digits than its factorization.

18138274510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441955.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 18138274510 in words is "eighteen billion, one hundred thirty-eight million, two hundred seventy-four thousand, five hundred ten".