14780406791 has 2 divisors, whose sum is σ = 14780406792. Its totient is φ = 14780406790.

The previous prime is 14780406779. The next prime is 14780406821. The reversal of 14780406791 is 19760408741.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19760408741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14780406791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14780405791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7390203395 + 7390203396.

It is an arithmetic number, because the mean of its divisors is an integer number (7390203396).

Almost surely, 2^14780406791 is an apocalyptic number.

14780406791 is a deficient number, since it is larger than the sum of its proper divisors (1).

14780406791 is an equidigital number, since it uses as much as digits as its factorization.

14780406791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 14780406791 in words is "fourteen billion, seven hundred eighty million, four hundred six thousand, seven hundred ninety-one".