39156222484889 has 2 divisors, whose sum is σ = 39156222484890. Its totient is φ = 39156222484888.

The previous prime is 39156222484793. The next prime is 39156222484991. The reversal of 39156222484889 is 98848422265193.

It is a happy number.

39156222484889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32347462875289 + 6808759609600 = 5687483^2 + 2609360^2 .

It is a cyclic number.

It is not a de Polignac number, because 39156222484889 - 2³⁶ = 39087503008153 is a prime.

It is a super-2 number, since 2×39156222484889² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39156222480889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19578111242444 + 19578111242445.

It is an arithmetic number, because the mean of its divisors is an integer number (19578111242445).

Almost surely, 2^{39156222484889} is an apocalyptic number.

It is an amenable number.

39156222484889 is a deficient number, since it is larger than the sum of its proper divisors (1).

39156222484889 is an equidigital number, since it uses as much as digits as its factorization.

39156222484889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 477757440, while the sum is 71.

The spelling of 39156222484889 in words is "thirty-nine trillion, one hundred fifty-six billion, two hundred twenty-two million, four hundred eighty-four thousand, eight hundred eighty-nine".