18002252632 has 64 divisors (see below), whose sum is σ = 42327593280. Its totient is φ = 6987382272.

The previous prime is 18002252627. The next prime is 18002252633. The reversal of 18002252632 is 23625220081.

It is a junction number, because it is equal to n+sod(n) for n = 18002252594 and 18002252603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18002252633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194703 + ... + 271870.

It is an arithmetic number, because the mean of its divisors is an integer number (661368645).

Almost surely, 2^18002252632 is an apocalyptic number.

It is an amenable number.

18002252632 is an abundant number, since it is smaller than the sum of its proper divisors (24325340648).

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

18002252632 is a wasteful number, since it uses less digits than its factorization.

18002252632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466652 (or 466648 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 18002252632 in words is "eighteen billion, two million, two hundred fifty-two thousand, six hundred thirty-two".