531425973191 has 2 divisors, whose sum is σ = 531425973192. Its totient is φ = 531425973190.

The previous prime is 531425973179. The next prime is 531425973263. The reversal of 531425973191 is 191379524135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531425973191 - 2²² = 531421778887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531425973161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265712986595 + 265712986596.

It is an arithmetic number, because the mean of its divisors is an integer number (265712986596).

Almost surely, 2^531425973191 is an apocalyptic number.

531425973191 is a deficient number, since it is larger than the sum of its proper divisors (1).

531425973191 is an equidigital number, since it uses as much as digits as its factorization.

531425973191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 50.

The spelling of 531425973191 in words is "five hundred thirty-one billion, four hundred twenty-five million, nine hundred seventy-three thousand, one hundred ninety-one".