18803652252 has 96 divisors (see below), whose sum is σ = 57580615680. Its totient is φ = 4627005120.

The previous prime is 18803652181. The next prime is 18803652253. The reversal of 18803652252 is 25225630881.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803652253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517978 + ... + 553089.

It is an arithmetic number, because the mean of its divisors is an integer number (599798080).

Almost surely, 2^18803652252 is an apocalyptic number.

18803652252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18803652252 is an abundant number, since it is smaller than the sum of its proper divisors (38776963428).

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

18803652252 is a wasteful number, since it uses less digits than its factorization.

18803652252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071111 (or 1071109 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 18803652252 in words is "eighteen billion, eight hundred three million, six hundred fifty-two thousand, two hundred fifty-two".