39876311213 has 2 divisors, whose sum is σ = 39876311214. Its totient is φ = 39876311212.

The previous prime is 39876311201. The next prime is 39876311317. The reversal of 39876311213 is 31211367893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31172727364 + 8703583849 = 176558^2 + 93293^2 .

It is a cyclic number.

It is not a de Polignac number, because 39876311213 - 2⁶ = 39876311149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39876311413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19938155606 + 19938155607.

It is an arithmetic number, because the mean of its divisors is an integer number (19938155607).

Almost surely, 2^39876311213 is an apocalyptic number.

It is an amenable number.

39876311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

39876311213 is an equidigital number, since it uses as much as digits as its factorization.

39876311213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The spelling of 39876311213 in words is "thirty-nine billion, eight hundred seventy-six million, three hundred eleven thousand, two hundred thirteen".