15440643314 has 16 divisors (see below), whose sum is σ = 24312693888. Its totient is φ = 7340432352.

The previous prime is 15440643313. The next prime is 15440643349. The reversal of 15440643314 is 41334604451.

It is not an unprimeable number, because it can be changed into a prime (15440643311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997307 + ... + 1012670.

It is an arithmetic number, because the mean of its divisors is an integer number (1519543368).

Almost surely, 2^15440643314 is an apocalyptic number.

15440643314 is a deficient number, since it is larger than the sum of its proper divisors (8872050574).

15440643314 is a wasteful number, since it uses less digits than its factorization.

15440643314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010169.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 15440643314 in words is "fifteen billion, four hundred forty million, six hundred forty-three thousand, three hundred fourteen".