14865945478 has 4 divisors (see below), whose sum is σ = 22298918220. Its totient is φ = 7432972738.

The previous prime is 14865945467. The next prime is 14865945527. The reversal of 14865945478 is 87454956841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87454956841 = 7 ⋅12493565263.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3716486368 + ... + 3716486371.

It is an arithmetic number, because the mean of its divisors is an integer number (5574729555).

Almost surely, 2^14865945478 is an apocalyptic number.

14865945478 is a deficient number, since it is larger than the sum of its proper divisors (7432972742).

14865945478 is an equidigital number, since it uses as much as digits as its factorization.

14865945478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7432972741.

The product of its digits is 38707200, while the sum is 61.

The spelling of 14865945478 in words is "fourteen billion, eight hundred sixty-five million, nine hundred forty-five thousand, four hundred seventy-eight".