14739843985 has 4 divisors (see below), whose sum is σ = 17687812788. Its totient is φ = 11791875184.

The previous prime is 14739843919. The next prime is 14739843991. The reversal of 14739843985 is 58934893741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58934893741 = 1091 ⋅54019151.

It can be written as a sum of positive squares in 2 ways, for example, as 1478248704 + 13261595281 = 38448^2 + 115159^2 .

It is a cyclic number.

It is not a de Polignac number, because 14739843985 - 2¹³ = 14739835793 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, 1473984394 + ... + 1473984403.

It is an arithmetic number, because the mean of its divisors is an integer number (4421953197).

Almost surely, 2^14739843985 is an apocalyptic number.

It is an amenable number.

14739843985 is a deficient number, since it is larger than the sum of its proper divisors (2947968803).

14739843985 is an equidigital number, since it uses as much as digits as its factorization.

14739843985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947968802.

The product of its digits is 26127360, while the sum is 61.

The spelling of 14739843985 in words is "fourteen billion, seven hundred thirty-nine million, eight hundred forty-three thousand, nine hundred eighty-five".