18800228753 has 8 divisors (see below), whose sum is σ = 19935714888. Its totient is φ = 17668030464.

The previous prime is 18800228717. The next prime is 18800228809. The reversal of 18800228753 is 35782200881.

It can be written as a sum of positive squares in 4 ways, for example, as 2393949184 + 16406279569 = 48928^2 + 128087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18800228753 - 2²⁸ = 18531793297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18800228353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810176 + ... + 833057.

It is an arithmetic number, because the mean of its divisors is an integer number (2491964361).

Almost surely, 2^18800228753 is an apocalyptic number.

It is an amenable number.

18800228753 is a deficient number, since it is larger than the sum of its proper divisors (1135486135).

18800228753 is a wasteful number, since it uses less digits than its factorization.

18800228753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643923.

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

The spelling of 18800228753 in words is "eighteen billion, eight hundred million, two hundred twenty-eight thousand, seven hundred fifty-three".