14452221491 has 2 divisors, whose sum is σ = 14452221492. Its totient is φ = 14452221490.

The previous prime is 14452221481. The next prime is 14452221517. The reversal of 14452221491 is 19412225441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14452221491 is a prime.

It is not a weakly prime, because it can be changed into another prime (14452221461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7226110745 + 7226110746.

It is an arithmetic number, because the mean of its divisors is an integer number (7226110746).

Almost surely, 2^14452221491 is an apocalyptic number.

14452221491 is a deficient number, since it is larger than the sum of its proper divisors (1).

14452221491 is an equidigital number, since it uses as much as digits as its factorization.

14452221491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The spelling of 14452221491 in words is "fourteen billion, four hundred fifty-two million, two hundred twenty-one thousand, four hundred ninety-one".