14851789991 has 4 divisors (see below), whose sum is σ = 14852904672. Its totient is φ = 14850675312.

The previous prime is 14851789949. The next prime is 14851789993. The reversal of 14851789991 is 19998715841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19998715841 = 13 ⋅1538362757.

It is a cyclic number.

It is not a de Polignac number, because 14851789991 - 2¹⁰ = 14851788967 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 (14851789993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537110 + ... + 564083.

It is an arithmetic number, because the mean of its divisors is an integer number (3713226168).

Almost surely, 2^14851789991 is an apocalyptic number.

14851789991 is a deficient number, since it is larger than the sum of its proper divisors (1114681).

14851789991 is a wasteful number, since it uses less digits than its factorization.

14851789991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114680.

The product of its digits is 6531840, while the sum is 62.

The spelling of 14851789991 in words is "fourteen billion, eight hundred fifty-one million, seven hundred eighty-nine thousand, nine hundred ninety-one".