506436529091 has 2 divisors, whose sum is σ = 506436529092. Its totient is φ = 506436529090.

The previous prime is 506436529087. The next prime is 506436529103. The reversal of 506436529091 is 190925634605.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 506436529091 - 2² = 506436529087 is a prime.

It is not a weakly prime, because it can be changed into another prime (506436529691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253218264545 + 253218264546.

It is an arithmetic number, because the mean of its divisors is an integer number (253218264546).

Almost surely, 2^506436529091 is an apocalyptic number.

506436529091 is a deficient number, since it is larger than the sum of its proper divisors (1).

506436529091 is an equidigital number, since it uses as much as digits as its factorization.

506436529091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 506436529091 in words is "five hundred six billion, four hundred thirty-six million, five hundred twenty-nine thousand, ninety-one".