39856147211 has 2 divisors, whose sum is σ = 39856147212. Its totient is φ = 39856147210.

The previous prime is 39856147189. The next prime is 39856147217. The reversal of 39856147211 is 11274165893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39856147211 - 2¹⁴ = 39856130827 is a prime.

It is not a weakly prime, because it can be changed into another prime (39856147217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19928073605 + 19928073606.

It is an arithmetic number, because the mean of its divisors is an integer number (19928073606).

Almost surely, 2^39856147211 is an apocalyptic number.

39856147211 is a deficient number, since it is larger than the sum of its proper divisors (1).

39856147211 is an equidigital number, since it uses as much as digits as its factorization.

39856147211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The spelling of 39856147211 in words is "thirty-nine billion, eight hundred fifty-six million, one hundred forty-seven thousand, two hundred eleven".