18697150396 has 24 divisors (see below), whose sum is σ = 34176935520. Its totient is φ = 8938571712.

The previous prime is 18697150379. The next prime is 18697150397. The reversal of 18697150396 is 69305179681.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18697150397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770491 + ... + 794386.

It is an arithmetic number, because the mean of its divisors is an integer number (1424038980).

Almost surely, 2^18697150396 is an apocalyptic number.

It is an amenable number.

18697150396 is a deficient number, since it is larger than the sum of its proper divisors (15479785124).

18697150396 is a wasteful number, since it uses less digits than its factorization.

18697150396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565013 (or 1565011 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 18697150396 in words is "eighteen billion, six hundred ninety-seven million, one hundred fifty thousand, three hundred ninety-six".