18002008964 has 24 divisors (see below), whose sum is σ = 33723664800. Its totient is φ = 8382735360.

The previous prime is 18002008939. The next prime is 18002008979. The reversal of 18002008964 is 46980020081.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 2002877 + ... + 2011844.

It is an arithmetic number, because the mean of its divisors is an integer number (1405152700).

Almost surely, 2^18002008964 is an apocalyptic number.

It is an amenable number.

18002008964 is a deficient number, since it is larger than the sum of its proper divisors (15721655836).

18002008964 is a wasteful number, since it uses less digits than its factorization.

18002008964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014803 (or 4014801 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 18002008964 in words is "eighteen billion, two million, eight thousand, nine hundred sixty-four".