18827077000 has 256 divisors, whose sum is σ = 47221574400. Its totient is φ = 7015680000.

The previous prime is 18827076967. The next prime is 18827077001. The reversal of 18827077000 is 77072881.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (18827077001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104016910 + ... + 104017090.

It is an arithmetic number, because the mean of its divisors is an integer number (184459275).

Almost surely, 2^18827077000 is an apocalyptic number.

18827077000 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 18827077000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23610787200).

18827077000 is an abundant number, since it is smaller than the sum of its proper divisors (28394497400).

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

18827077000 is a wasteful number, since it uses less digits than its factorization.

18827077000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 40.

The spelling of 18827077000 in words is "eighteen billion, eight hundred twenty-seven million, seventy-seven thousand".