431505650211907 has 2 divisors, whose sum is σ = 431505650211908. Its totient is φ = 431505650211906.

The previous prime is 431505650211871. The next prime is 431505650211917. The reversal of 431505650211907 is 709112056505134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431505650211907 is a prime.

It is not a weakly prime, because it can be changed into another prime (431505650211917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215752825105953 + 215752825105954.

It is an arithmetic number, because the mean of its divisors is an integer number (215752825105954).

Almost surely, 2^{431505650211907} is an apocalyptic number.

431505650211907 is a deficient number, since it is larger than the sum of its proper divisors (1).

431505650211907 is an equidigital number, since it uses as much as digits as its factorization.

431505650211907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 431505650211907 in words is "four hundred thirty-one trillion, five hundred five billion, six hundred fifty million, two hundred eleven thousand, nine hundred seven".