14515421444 has 24 divisors (see below), whose sum is σ = 25662231000. Its totient is φ = 7183404800.

The previous prime is 14515421413. The next prime is 14515421471. The reversal of 14515421444 is 44412451541.

It can be written as a sum of positive squares in 4 ways, for example, as 8695562500 + 5819858944 = 93250^2 + 76288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971482 + ... + 1978830.

It is an arithmetic number, because the mean of its divisors is an integer number (1069259625).

Almost surely, 2^14515421444 is an apocalyptic number.

It is an amenable number.

14515421444 is a deficient number, since it is larger than the sum of its proper divisors (11146809556).

14515421444 is a wasteful number, since it uses less digits than its factorization.

14515421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12343 (or 12341 counting only the distinct ones).

The product of its digits is 51200, while the sum is 35.

Adding to 14515421444 its reverse (44412451541), we get a palindrome (58927872985).

The spelling of 14515421444 in words is "fourteen billion, five hundred fifteen million, four hundred twenty-one thousand, four hundred forty-four".