14944306978 has 4 divisors (see below), whose sum is σ = 22416460470. Its totient is φ = 7472153488.

The previous prime is 14944306961. The next prime is 14944306981. The reversal of 14944306978 is 87960344941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8213253129 + 6731053849 = 90627^2 + 82043^2 .

It is a super-2 number, since 2×14944306978² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3736076743 + ... + 3736076746.

Almost surely, 2^14944306978 is an apocalyptic number.

14944306978 is a deficient number, since it is larger than the sum of its proper divisors (7472153492).

14944306978 is an equidigital number, since it uses as much as digits as its factorization.

14944306978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472153491.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 14944306978 in words is "fourteen billion, nine hundred forty-four million, three hundred six thousand, nine hundred seventy-eight".