14456801623421 has 2 divisors, whose sum is σ = 14456801623422. Its totient is φ = 14456801623420.

The previous prime is 14456801623391. The next prime is 14456801623447. The reversal of 14456801623421 is 12432610865441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11479485883321 + 2977315740100 = 3388139^2 + 1725490^2 .

It is a cyclic number.

It is not a de Polignac number, because 14456801623421 - 2⁶ = 14456801623357 is a prime.

It is a super-2 number, since 2×14456801623421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14456801623921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7228400811710 + 7228400811711.

It is an arithmetic number, because the mean of its divisors is an integer number (7228400811711).

Almost surely, 2^{14456801623421} is an apocalyptic number.

It is an amenable number.

14456801623421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14456801623421 is an equidigital number, since it uses as much as digits as its factorization.

14456801623421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 14456801623421 in words is "fourteen trillion, four hundred fifty-six billion, eight hundred one million, six hundred twenty-three thousand, four hundred twenty-one".