14121321786 has 80 divisors (see below), whose sum is σ = 37174138848. Its totient is φ = 3950013600.

The previous prime is 14121321769. The next prime is 14121321787. The reversal of 14121321786 is 68712312141.

It is a self number, because there is not a number n which added to its sum of digits gives 14121321786.

It is not an unprimeable number, because it can be changed into a prime (14121321787) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 281620 + ... + 327951.

Almost surely, 2^14121321786 is an apocalyptic number.

14121321786 is an abundant number, since it is smaller than the sum of its proper divisors (23052817062).

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

14121321786 is a wasteful number, since it uses less digits than its factorization.

14121321786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609609 (or 609600 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The spelling of 14121321786 in words is "fourteen billion, one hundred twenty-one million, three hundred twenty-one thousand, seven hundred eighty-six".