14781678607 has 2 divisors, whose sum is σ = 14781678608. Its totient is φ = 14781678606.

The previous prime is 14781678589. The next prime is 14781678643. The reversal of 14781678607 is 70687618741.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14781678607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14751678607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7390839303 + 7390839304.

It is an arithmetic number, because the mean of its divisors is an integer number (7390839304).

Almost surely, 2^14781678607 is an apocalyptic number.

14781678607 is a deficient number, since it is larger than the sum of its proper divisors (1).

14781678607 is an equidigital number, since it uses as much as digits as its factorization.

14781678607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 14781678607 in words is "fourteen billion, seven hundred eighty-one million, six hundred seventy-eight thousand, six hundred seven".