14981399949 has 4 divisors (see below), whose sum is σ = 19975199936. Its totient is φ = 9987599964.

The previous prime is 14981399929. The next prime is 14981399963. The reversal of 14981399949 is 94999318941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14981399949 - 2⁹ = 14981399437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14981399949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14981399929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496899989 + ... + 2496899994.

It is an arithmetic number, because the mean of its divisors is an integer number (4993799984).

Almost surely, 2^14981399949 is an apocalyptic number.

It is an amenable number.

14981399949 is a deficient number, since it is larger than the sum of its proper divisors (4993799987).

14981399949 is an equidigital number, since it uses as much as digits as its factorization.

14981399949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993799986.

The product of its digits is 22674816, while the sum is 66.

The spelling of 14981399949 in words is "fourteen billion, nine hundred eighty-one million, three hundred ninety-nine thousand, nine hundred forty-nine".