39955189363 has 2 divisors, whose sum is σ = 39955189364. Its totient is φ = 39955189362.

The previous prime is 39955189361. The next prime is 39955189367. The reversal of 39955189363 is 36398155993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39955189363 - 2¹ = 39955189361 is a prime.

Together with 39955189361, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (39955189361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19977594681 + 19977594682.

It is an arithmetic number, because the mean of its divisors is an integer number (19977594682).

Almost surely, 2^39955189363 is an apocalyptic number.

39955189363 is a deficient number, since it is larger than the sum of its proper divisors (1).

39955189363 is an equidigital number, since it uses as much as digits as its factorization.

39955189363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23619600, while the sum is 61.

The spelling of 39955189363 in words is "thirty-nine billion, nine hundred fifty-five million, one hundred eighty-nine thousand, three hundred sixty-three".