421580715798433 has 2 divisors, whose sum is σ = 421580715798434. Its totient is φ = 421580715798432.

The previous prime is 421580715798397. The next prime is 421580715798559. The reversal of 421580715798433 is 334897517085124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223177067348544 + 198403648449889 = 14939112^2 + 14085583^2 .

It is a cyclic number.

It is not a de Polignac number, because 421580715798433 - 2²¹ = 421580713701281 is a prime.

It is not a weakly prime, because it can be changed into another prime (421580715798733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210790357899216 + 210790357899217.

It is an arithmetic number, because the mean of its divisors is an integer number (210790357899217).

Almost surely, 2^{421580715798433} is an apocalyptic number.

It is an amenable number.

421580715798433 is a deficient number, since it is larger than the sum of its proper divisors (1).

421580715798433 is an equidigital number, since it uses as much as digits as its factorization.

421580715798433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 203212800, while the sum is 67.

The spelling of 421580715798433 in words is "four hundred twenty-one trillion, five hundred eighty billion, seven hundred fifteen million, seven hundred ninety-eight thousand, four hundred thirty-three".