18901795000 has 160 divisors (see below), whose sum is σ = 48478169520. Its totient is φ = 6849920000.

The previous prime is 18901794971. The next prime is 18901795007. The reversal of 18901795000 is 59710981.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18901795007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30634692 + ... + 30635308.

Almost surely, 2^18901795000 is an apocalyptic number.

18901795000 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 18901795000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24239084760).

18901795000 is an abundant number, since it is smaller than the sum of its proper divisors (29576374520).

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

18901795000 is a wasteful number, since it uses less digits than its factorization.

18901795000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The spelling of 18901795000 in words is "eighteen billion, nine hundred one million, seven hundred ninety-five thousand".