18377388000 has 384 divisors, whose sum is σ = 67251824640. Its totient is φ = 4874457600.

The previous prime is 18377387999. The next prime is 18377388023. The reversal of 18377388000 is 88377381.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28403677 + ... + 28404323.

It is an arithmetic number, because the mean of its divisors is an integer number (175134960).

Almost surely, 2^18377388000 is an apocalyptic number.

18377388000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18377388000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33625912320).

18377388000 is an abundant number, since it is smaller than the sum of its proper divisors (48874436640).

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

18377388000 is a wasteful number, since it uses less digits than its factorization.

18377388000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

It can be divided in two parts, 1837 and 7388000, that added together give a palindrome (7389837).

The spelling of 18377388000 in words is "eighteen billion, three hundred seventy-seven million, three hundred eighty-eight thousand".