14249870791991 has 8 divisors (see below), whose sum is σ = 14460685668000. Its totient is φ = 14039336818080.

The previous prime is 14249870791987. The next prime is 14249870792009. The reversal of 14249870791991 is 19919707894241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14249870791991 - 2² = 14249870791987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14249870796991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70123316 + ... + 70326233.

It is an arithmetic number, because the mean of its divisors is an integer number (1807585708500).

Almost surely, 2^{14249870791991} is an apocalyptic number.

14249870791991 is a deficient number, since it is larger than the sum of its proper divisors (210814876009).

14249870791991 is a wasteful number, since it uses less digits than its factorization.

14249870791991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140451049.

The product of its (nonzero) digits is 82301184, while the sum is 71.

The spelling of 14249870791991 in words is "fourteen trillion, two hundred forty-nine billion, eight hundred seventy million, seven hundred ninety-one thousand, nine hundred ninety-one".