18387854000 has 40 divisors (see below), whose sum is σ = 44461835808. Its totient is φ = 7355140800.

The previous prime is 18387853987. The next prime is 18387854047. The reversal of 18387854000 is 45878381.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×18387854000² (a number of 21 digits) contains 22 as substring.

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, 4594964 + ... + 4598963.

Almost surely, 2^18387854000 is an apocalyptic number.

18387854000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18387854000 is an abundant number, since it is smaller than the sum of its proper divisors (26073981808).

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

18387854000 is an equidigital number, since it uses as much as digits as its factorization.

18387854000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193950 (or 9193934 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 18387854000 in words is "eighteen billion, three hundred eighty-seven million, eight hundred fifty-four thousand".