18618370414 has 16 divisors (see below), whose sum is σ = 32946794496. Its totient is φ = 7721904600.

The previous prime is 18618370391. The next prime is 18618370423. The reversal of 18618370414 is 41407381681.

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, 21449302 + ... + 21450169.

It is an arithmetic number, because the mean of its divisors is an integer number (2059174656).

Almost surely, 2^18618370414 is an apocalyptic number.

18618370414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18618370414 is a deficient number, since it is larger than the sum of its proper divisors (14328424082).

18618370414 is a wasteful number, since it uses less digits than its factorization.

18618370414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42899511.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 18618370414 in words is "eighteen billion, six hundred eighteen million, three hundred seventy thousand, four hundred fourteen".