18618054690 has 32 divisors (see below), whose sum is σ = 44701577856. Its totient is φ = 4962787200.

The previous prime is 18618054659. The next prime is 18618054701. The reversal of 18618054690 is 9645081681.

It is a super-2 number, since 2×18618054690² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51286 + ... + 199665.

It is an arithmetic number, because the mean of its divisors is an integer number (1396924308).

Almost surely, 2^18618054690 is an apocalyptic number.

18618054690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18618054690 is an abundant number, since it is smaller than the sum of its proper divisors (26083523166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18618054690 is a wasteful number, since it uses less digits than its factorization.

18618054690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253434.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 18618054690 in words is "eighteen billion, six hundred eighteen million, fifty-four thousand, six hundred ninety".