17994855148 has 24 divisors (see below), whose sum is σ = 31629491712. Its totient is φ = 8957942784.

The previous prime is 17994855119. The next prime is 17994855167. The reversal of 17994855148 is 84155849971.

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, 873786 + ... + 894142.

It is an arithmetic number, because the mean of its divisors is an integer number (1317895488).

Almost surely, 2^17994855148 is an apocalyptic number.

It is an amenable number.

17994855148 is a deficient number, since it is larger than the sum of its proper divisors (13634636564).

17994855148 is a wasteful number, since it uses less digits than its factorization.

17994855148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21321 (or 21319 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 61.

The spelling of 17994855148 in words is "seventeen billion, nine hundred ninety-four million, eight hundred fifty-five thousand, one hundred forty-eight".