38512306802857 has 2 divisors, whose sum is σ = 38512306802858. Its totient is φ = 38512306802856.

The previous prime is 38512306802831. The next prime is 38512306802887. The reversal of 38512306802857 is 75820860321583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27698969006361 + 10813337796496 = 5262981^2 + 3288364^2 .

It is a cyclic number.

It is not a de Polignac number, because 38512306802857 - 2¹⁵ = 38512306770089 is a prime.

It is a super-2 number, since 2×38512306802857² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38512306802887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19256153401428 + 19256153401429.

It is an arithmetic number, because the mean of its divisors is an integer number (19256153401429).

Almost surely, 2^{38512306802857} is an apocalyptic number.

It is an amenable number.

38512306802857 is a deficient number, since it is larger than the sum of its proper divisors (1).

38512306802857 is an equidigital number, since it uses as much as digits as its factorization.

38512306802857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 38512306802857 in words is "thirty-eight trillion, five hundred twelve billion, three hundred six million, eight hundred two thousand, eight hundred fifty-seven".