405254232325469 has 2 divisors, whose sum is σ = 405254232325470. Its totient is φ = 405254232325468.

The previous prime is 405254232325339. The next prime is 405254232325499. The reversal of 405254232325469 is 964523232452504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401127593548900 + 4126638776569 = 20028170^2 + 2031413^2 .

It is a cyclic number.

It is not a de Polignac number, because 405254232325469 - 2³² = 405249937358173 is a prime.

It is a super-2 number, since 2×405254232325469² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405254232325499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202627116162734 + 202627116162735.

It is an arithmetic number, because the mean of its divisors is an integer number (202627116162735).

Almost surely, 2^{405254232325469} is an apocalyptic number.

It is an amenable number.

405254232325469 is a deficient number, since it is larger than the sum of its proper divisors (1).

405254232325469 is an equidigital number, since it uses as much as digits as its factorization.

405254232325469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208000, while the sum is 56.

The spelling of 405254232325469 in words is "four hundred five trillion, two hundred fifty-four billion, two hundred thirty-two million, three hundred twenty-five thousand, four hundred sixty-nine".