13421843933 has 2 divisors, whose sum is σ = 13421843934. Its totient is φ = 13421843932.

The previous prime is 13421843923. The next prime is 13421843951. The reversal of 13421843933 is 33934812431.

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., 13338633049 + 83210884 = 115493^2 + 9122^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421843933 - 2¹⁰ = 13421842909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13421843923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710921966 + 6710921967.

It is an arithmetic number, because the mean of its divisors is an integer number (6710921967).

Almost surely, 2^13421843933 is an apocalyptic number.

It is an amenable number.

13421843933 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421843933 is an equidigital number, since it uses as much as digits as its factorization.

13421843933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The spelling of 13421843933 in words is "thirteen billion, four hundred twenty-one million, eight hundred forty-three thousand, nine hundred thirty-three".