14344919640 has 64 divisors (see below), whose sum is σ = 47816402400. Its totient is φ = 3825311616.

The previous prime is 14344919639. The next prime is 14344919663. The reversal of 14344919640 is 4691944341.

14344919640 is a `hidden beast` number, since 1 + 4 + 34 + 491 + 96 + 40 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6640087 + ... + 6642246.

Almost surely, 2^14344919640 is an apocalyptic number.

14344919640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14344919640 is an abundant number, since it is smaller than the sum of its proper divisors (33471482760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14344919640 is a wasteful number, since it uses less digits than its factorization.

14344919640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282353 (or 13282343 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 14344919640 in words is "fourteen billion, three hundred forty-four million, nine hundred nineteen thousand, six hundred forty".