39153661213 has 2 divisors, whose sum is σ = 39153661214. Its totient is φ = 39153661212.

The previous prime is 39153661181. The next prime is 39153661219. The reversal of 39153661213 is 31216635193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38016420484 + 1137240729 = 194978^2 + 33723^2 .

It is a cyclic number.

It is not a de Polignac number, because 39153661213 - 2⁵ = 39153661181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39153661219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19576830606 + 19576830607.

It is an arithmetic number, because the mean of its divisors is an integer number (19576830607).

Almost surely, 2^39153661213 is an apocalyptic number.

It is an amenable number.

39153661213 is a deficient number, since it is larger than the sum of its proper divisors (1).

39153661213 is an equidigital number, since it uses as much as digits as its factorization.

39153661213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 40.

The spelling of 39153661213 in words is "thirty-nine billion, one hundred fifty-three million, six hundred sixty-one thousand, two hundred thirteen".