14997191812 has 12 divisors (see below), whose sum is σ = 26499893056. Its totient is φ = 7425793800.

The previous prime is 14997191773. The next prime is 14997191813. The reversal of 14997191812 is 21819179941.

It is a self number, because there is not a number n which added to its sum of digits gives 14997191812.

It is not an unprimeable number, because it can be changed into a prime (14997191813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18200064 + ... + 18200887.

Almost surely, 2^14997191812 is an apocalyptic number.

It is an amenable number.

14997191812 is a deficient number, since it is larger than the sum of its proper divisors (11502701244).

14997191812 is a wasteful number, since it uses less digits than its factorization.

14997191812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36401058 (or 36401056 counting only the distinct ones).

The product of its digits is 326592, while the sum is 52.

The spelling of 14997191812 in words is "fourteen billion, nine hundred ninety-seven million, one hundred ninety-one thousand, eight hundred twelve".