14128861493 has 4 divisors (see below), whose sum is σ = 14131379808. Its totient is φ = 14126343180.

The previous prime is 14128861471. The next prime is 14128861507. The reversal of 14128861493 is 39416882141.

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.

It is a cyclic number.

It is not a de Polignac number, because 14128861493 - 2³⁰ = 13055119669 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 (14128861093) 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, 1250723 + ... + 1261968.

It is an arithmetic number, because the mean of its divisors is an integer number (3532844952).

Almost surely, 2^14128861493 is an apocalyptic number.

It is an amenable number.

14128861493 is a deficient number, since it is larger than the sum of its proper divisors (2518315).

14128861493 is an equidigital number, since it uses as much as digits as its factorization.

14128861493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518314.

The product of its digits is 331776, while the sum is 47.

The spelling of 14128861493 in words is "fourteen billion, one hundred twenty-eight million, eight hundred sixty-one thousand, four hundred ninety-three".