14178634857 has 12 divisors (see below), whose sum is σ = 20815992964. Its totient is φ = 9297465120.

The previous prime is 14178634853. The next prime is 14178634859. The reversal of 14178634857 is 75843687141.

14178634857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5583676176 + 8594958681 = 74724^2 + 92709^2 .

It is not a de Polignac number, because 14178634857 - 2² = 14178634853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14178634853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12912598 + ... + 12913695.

Almost surely, 2^14178634857 is an apocalyptic number.

It is an amenable number.

14178634857 is a deficient number, since it is larger than the sum of its proper divisors (6637358107).

14178634857 is a wasteful number, since it uses less digits than its factorization.

14178634857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25826360 (or 25826357 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 14178634857 in words is "fourteen billion, one hundred seventy-eight million, six hundred thirty-four thousand, eight hundred fifty-seven".