18775440152 has 48 divisors (see below), whose sum is σ = 43360463160. Its totient is φ = 7573284096.

The previous prime is 18775440143. The next prime is 18775440163. The reversal of 18775440152 is 25104457781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1402058 + ... + 1415385.

Almost surely, 2^18775440152 is an apocalyptic number.

It is an amenable number.

18775440152 is an abundant number, since it is smaller than the sum of its proper divisors (24585023008).

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

18775440152 is a wasteful number, since it uses less digits than its factorization.

18775440152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817480 (or 2817469 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 18775440152 in words is "eighteen billion, seven hundred seventy-five million, four hundred forty thousand, one hundred fifty-two".