14502568021 has 2 divisors, whose sum is σ = 14502568022. Its totient is φ = 14502568020.

The previous prime is 14502568009. The next prime is 14502568081. The reversal of 14502568021 is 12086520541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14122707921 + 379860100 = 118839^2 + 19490^2 .

It is a cyclic number.

It is not a de Polignac number, because 14502568021 - 2²¹ = 14500470869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14502568001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7251284010 + 7251284011.

It is an arithmetic number, because the mean of its divisors is an integer number (7251284011).

Almost surely, 2^14502568021 is an apocalyptic number.

It is an amenable number.

14502568021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14502568021 is an equidigital number, since it uses as much as digits as its factorization.

14502568021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 14502568021 in words is "fourteen billion, five hundred two million, five hundred sixty-eight thousand, twenty-one".