523505461439 has 2 divisors, whose sum is σ = 523505461440. Its totient is φ = 523505461438.

The previous prime is 523505461393. The next prime is 523505461447. The reversal of 523505461439 is 934164505325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523505461439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523505461393 and 523505461402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523505461459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261752730719 + 261752730720.

It is an arithmetic number, because the mean of its divisors is an integer number (261752730720).

Almost surely, 2^523505461439 is an apocalyptic number.

523505461439 is a deficient number, since it is larger than the sum of its proper divisors (1).

523505461439 is an equidigital number, since it uses as much as digits as its factorization.

523505461439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 523505461439 in words is "five hundred twenty-three billion, five hundred five million, four hundred sixty-one thousand, four hundred thirty-nine".