14491213946778 has 32 divisors (see below), whose sum is σ = 29765985814080. Its totient is φ = 4699813847040.

The previous prime is 14491213946687. The next prime is 14491213946819. The reversal of 14491213946778 is 87764931219441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39029533 + ... + 39399071.

It is an arithmetic number, because the mean of its divisors is an integer number (930187056690).

Almost surely, 2^{14491213946778} is an apocalyptic number.

14491213946778 is an abundant number, since it is smaller than the sum of its proper divisors (15274771867302).

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

14491213946778 is a wasteful number, since it uses less digits than its factorization.

14491213946778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546222.

The product of its digits is 73156608, while the sum is 66.

The spelling of 14491213946778 in words is "fourteen trillion, four hundred ninety-one billion, two hundred thirteen million, nine hundred forty-six thousand, seven hundred seventy-eight".