734823243421 has 2 divisors, whose sum is σ = 734823243422. Its totient is φ = 734823243420.

The previous prime is 734823243379. The next prime is 734823243461. The reversal of 734823243421 is 124342328437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499020739396 + 235802504025 = 706414^2 + 485595^2 .

It is a cyclic number.

It is not a de Polignac number, because 734823243421 - 2²⁵ = 734789688989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734823243461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367411621710 + 367411621711.

It is an arithmetic number, because the mean of its divisors is an integer number (367411621711).

Almost surely, 2^734823243421 is an apocalyptic number.

It is an amenable number.

734823243421 is a deficient number, since it is larger than the sum of its proper divisors (1).

734823243421 is an equidigital number, since it uses as much as digits as its factorization.

734823243421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 43.

The spelling of 734823243421 in words is "seven hundred thirty-four billion, eight hundred twenty-three million, two hundred forty-three thousand, four hundred twenty-one".