18500370352 has 10 divisors (see below), whose sum is σ = 35844467588. Its totient is φ = 9250185168.

The previous prime is 18500370307. The next prime is 18500370373. The reversal of 18500370352 is 25307300581.

It is a super-2 number, since 2×18500370352² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578136558 + ... + 578136589.

Almost surely, 2^18500370352 is an apocalyptic number.

It is an amenable number.

18500370352 is a deficient number, since it is larger than the sum of its proper divisors (17344097236).

18500370352 is a wasteful number, since it uses less digits than its factorization.

18500370352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156273155 (or 1156273149 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 18500370352 in words is "eighteen billion, five hundred million, three hundred seventy thousand, three hundred fifty-two".