14729114978 has 6 divisors (see below), whose sum is σ = 22093929921. Its totient is φ = 7364471672.

The previous prime is 14729114977. The next prime is 14729115007. The reversal of 14729114978 is 87941192741.

It can be written as a sum of positive squares in 2 ways, for example, as 14716843969 + 12271009 = 121313^2 + 3503^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=85817.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14729114977) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 128726 + ... + 214542.

Almost surely, 2^14729114978 is an apocalyptic number.

14729114978 is a deficient number, since it is larger than the sum of its proper divisors (7364814943).

14729114978 is an frugal number, since it uses more digits than its factorization.

14729114978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171636 (or 85819 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The spelling of 14729114978 in words is "fourteen billion, seven hundred twenty-nine million, one hundred fourteen thousand, nine hundred seventy-eight".