14434523821 has 2 divisors, whose sum is σ = 14434523822. Its totient is φ = 14434523820.

The previous prime is 14434523797. The next prime is 14434523833. The reversal of 14434523821 is 12832543441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13639904100 + 794619721 = 116790^2 + 28189^2 .

It is a cyclic number.

It is not a de Polignac number, because 14434523821 - 2¹³ = 14434515629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14434523891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7217261910 + 7217261911.

It is an arithmetic number, because the mean of its divisors is an integer number (7217261911).

Almost surely, 2^14434523821 is an apocalyptic number.

It is an amenable number.

14434523821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14434523821 is an equidigital number, since it uses as much as digits as its factorization.

14434523821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 37.

The spelling of 14434523821 in words is "fourteen billion, four hundred thirty-four million, five hundred twenty-three thousand, eight hundred twenty-one".