506345951999 has 2 divisors, whose sum is σ = 506345952000. Its totient is φ = 506345951998.

The previous prime is 506345951933. The next prime is 506345952001. The reversal of 506345951999 is 999159543605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506345951999 is a prime.

It is a super-2 number, since 2×506345951999² (a number of 24 digits) contains 22 as substring.

Together with 506345952001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506345951299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253172975999 + 253172976000.

It is an arithmetic number, because the mean of its divisors is an integer number (253172976000).

Almost surely, 2^506345951999 is an apocalyptic number.

506345951999 is a deficient number, since it is larger than the sum of its proper divisors (1).

506345951999 is an equidigital number, since it uses as much as digits as its factorization.

506345951999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59049000, while the sum is 65.

The spelling of 506345951999 in words is "five hundred six billion, three hundred forty-five million, nine hundred fifty-one thousand, nine hundred ninety-nine".