14428011391 has 4 divisors (see below), whose sum is σ = 14438109400. Its totient is φ = 14417913384.

The previous prime is 14428011383. The next prime is 14428011461. The reversal of 14428011391 is 19311082441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19311082441 = 7 ⋅2758726063.

It is a cyclic number.

It is not a de Polignac number, because 14428011391 - 2³ = 14428011383 is a prime.

It is a super-3 number, since 3×14428011391³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14428011331) 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, 5046861 + ... + 5049718.

It is an arithmetic number, because the mean of its divisors is an integer number (3609527350).

Almost surely, 2^14428011391 is an apocalyptic number.

14428011391 is a deficient number, since it is larger than the sum of its proper divisors (10098009).

14428011391 is a wasteful number, since it uses less digits than its factorization.

14428011391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098008.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 14428011391 in words is "fourteen billion, four hundred twenty-eight million, eleven thousand, three hundred ninety-one".