14906811778 has 8 divisors (see below), whose sum is σ = 22366989072. Its totient is φ = 7451148756.

The previous prime is 14906811697. The next prime is 14906811781. The reversal of 14906811778 is 87711860941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120300 + ... + 1133527.

It is an arithmetic number, because the mean of its divisors is an integer number (2795873634).

Almost surely, 2^14906811778 is an apocalyptic number.

14906811778 is a deficient number, since it is larger than the sum of its proper divisors (7460177294).

14906811778 is a wasteful number, since it uses less digits than its factorization.

14906811778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257136.

The product of its (nonzero) digits is 677376, while the sum is 52.

The spelling of 14906811778 in words is "fourteen billion, nine hundred six million, eight hundred eleven thousand, seven hundred seventy-eight".