14780403749 has 4 divisors (see below), whose sum is σ = 14798021280. Its totient is φ = 14762786220.

The previous prime is 14780403739. The next prime is 14780403751. The reversal of 14780403749 is 94730408741.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94730408741 = 173 ⋅547574617.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14780403749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14780403739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8807507 + ... + 8809184.

It is an arithmetic number, because the mean of its divisors is an integer number (3699505320).

Almost surely, 2^14780403749 is an apocalyptic number.

It is an amenable number.

14780403749 is a deficient number, since it is larger than the sum of its proper divisors (17617531).

14780403749 is an equidigital number, since it uses as much as digits as its factorization.

14780403749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617530.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 14780403749 in words is "fourteen billion, seven hundred eighty million, four hundred three thousand, seven hundred forty-nine".