512457428887 has 2 divisors, whose sum is σ = 512457428888. Its totient is φ = 512457428886.

The previous prime is 512457428881. The next prime is 512457428891. The reversal of 512457428887 is 788824754215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512457428887 - 2⁷ = 512457428759 is a prime.

It is a super-3 number, since 3×512457428887³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512457428881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256228714443 + 256228714444.

It is an arithmetic number, because the mean of its divisors is an integer number (256228714444).

Almost surely, 2^512457428887 is an apocalyptic number.

512457428887 is a deficient number, since it is larger than the sum of its proper divisors (1).

512457428887 is an equidigital number, since it uses as much as digits as its factorization.

512457428887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40140800, while the sum is 61.

The spelling of 512457428887 in words is "five hundred twelve billion, four hundred fifty-seven million, four hundred twenty-eight thousand, eight hundred eighty-seven".