431427452887 has 2 divisors, whose sum is σ = 431427452888. Its totient is φ = 431427452886.

The previous prime is 431427452881. The next prime is 431427452927. The reversal of 431427452887 is 788254724134.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431427452887 is a prime.

It is a super-2 number, since 2×431427452887² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431427452881) 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, 215713726443 + 215713726444.

It is an arithmetic number, because the mean of its divisors is an integer number (215713726444).

Almost surely, 2^431427452887 is an apocalyptic number.

431427452887 is a deficient number, since it is larger than the sum of its proper divisors (1).

431427452887 is an equidigital number, since it uses as much as digits as its factorization.

431427452887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12042240, while the sum is 55.

The spelling of 431427452887 in words is "four hundred thirty-one billion, four hundred twenty-seven million, four hundred fifty-two thousand, eight hundred eighty-seven".