512004620857 has 2 divisors, whose sum is σ = 512004620858. Its totient is φ = 512004620856.

The previous prime is 512004620843. The next prime is 512004620863. The reversal of 512004620857 is 758026400215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505799750416 + 6204870441 = 711196^2 + 78771^2 .

It is a cyclic number.

It is not a de Polignac number, because 512004620857 - 2²³ = 511996232249 is a prime.

It is not a weakly prime, because it can be changed into another prime (512004680857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256002310428 + 256002310429.

It is an arithmetic number, because the mean of its divisors is an integer number (256002310429).

Almost surely, 2^512004620857 is an apocalyptic number.

It is an amenable number.

512004620857 is a deficient number, since it is larger than the sum of its proper divisors (1).

512004620857 is an equidigital number, since it uses as much as digits as its factorization.

512004620857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 512004620857 in words is "five hundred twelve billion, four million, six hundred twenty thousand, eight hundred fifty-seven".