18888859000 has 64 divisors (see below), whose sum is σ = 48218133600. Its totient is φ = 6868672000.

The previous prime is 18888858979. The next prime is 18888859007. The reversal of 18888859000 is 95888881.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18888859007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847585 + ... + 869584.

Almost surely, 2^18888859000 is an apocalyptic number.

18888859000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18888859000 is an abundant number, since it is smaller than the sum of its proper divisors (29329274600).

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

18888859000 is a wasteful number, since it uses less digits than its factorization.

18888859000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717201 (or 1717187 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 55.

The spelling of 18888859000 in words is "eighteen billion, eight hundred eighty-eight million, eight hundred fifty-nine thousand".