505430412411421 has 32 divisors (see below), whose sum is σ = 587346747902208. Its totient is φ = 425947981155840.

The previous prime is 505430412411403. The next prime is 505430412411437. The reversal of 505430412411421 is 124114214034505.

It is not a de Polignac number, because 505430412411421 - 2⁷ = 505430412411293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505430412411521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12148872606 + ... + 12148914208.

It is an arithmetic number, because the mean of its divisors is an integer number (18354585871944).

Almost surely, 2^{505430412411421} is an apocalyptic number.

It is an amenable number.

505430412411421 is a deficient number, since it is larger than the sum of its proper divisors (81916335490787).

505430412411421 is a wasteful number, since it uses less digits than its factorization.

505430412411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52741.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 505430412411421 its reverse (124114214034505), we get a palindrome (629544626445926).

The spelling of 505430412411421 in words is "five hundred five trillion, four hundred thirty billion, four hundred twelve million, four hundred eleven thousand, four hundred twenty-one".