14991748705 has 4 divisors (see below), whose sum is σ = 17990098452. Its totient is φ = 11993398960.

The previous prime is 14991748661. The next prime is 14991748729. The reversal of 14991748705 is 50784719941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50784719941 = 2341 ⋅21693601.

It can be written as a sum of positive squares in 2 ways, for example, as 7331298129 + 7660450576 = 85623^2 + 87524^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14991748705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499174866 + ... + 1499174875.

It is an arithmetic number, because the mean of its divisors is an integer number (4497524613).

Almost surely, 2^14991748705 is an apocalyptic number.

It is an amenable number.

14991748705 is a deficient number, since it is larger than the sum of its proper divisors (2998349747).

14991748705 is an equidigital number, since it uses as much as digits as its factorization.

14991748705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998349746.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 14991748705 in words is "fourteen billion, nine hundred ninety-one million, seven hundred forty-eight thousand, seven hundred five".