18360001908 has 36 divisors (see below), whose sum is σ = 46415224128. Its totient is φ = 6119312400.

The previous prime is 18360001883. The next prime is 18360001939. The reversal of 18360001908 is 80910006381.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372933 + ... + 419283.

Almost surely, 2^18360001908 is an apocalyptic number.

18360001908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18360001908 is an abundant number, since it is smaller than the sum of its proper divisors (28055222220).

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

18360001908 is a wasteful number, since it uses less digits than its factorization.

18360001908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57364 (or 57359 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 18360001908 in words is "eighteen billion, three hundred sixty million, one thousand, nine hundred eight".