18817351396 has 24 divisors (see below), whose sum is σ = 33263432384. Its totient is φ = 9313587360.

The previous prime is 18817351393. The next prime is 18817351403. The reversal of 18817351396 is 69315371881.

It is not an unprimeable number, because it can be changed into a prime (18817351393) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1216366 + ... + 1231738.

Almost surely, 2^18817351396 is an apocalyptic number.

It is an amenable number.

18817351396 is a deficient number, since it is larger than the sum of its proper divisors (14446080988).

18817351396 is a wasteful number, since it uses less digits than its factorization.

18817351396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18451 (or 18449 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 52.

The spelling of 18817351396 in words is "eighteen billion, eight hundred seventeen million, three hundred fifty-one thousand, three hundred ninety-six".