39891368050393 has 4 divisors (see below), whose sum is σ = 39957086944000. Its totient is φ = 39825649156788.

The previous prime is 39891368050363. The next prime is 39891368050441. The reversal of 39891368050393 is 39305086319893.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39891368050393 - 2⁵ = 39891368050361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39891368050363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32859445893 + ... + 32859447106.

It is an arithmetic number, because the mean of its divisors is an integer number (9989271736000).

Almost surely, 2^{39891368050393} is an apocalyptic number.

It is an amenable number.

39891368050393 is a deficient number, since it is larger than the sum of its proper divisors (65718893607).

39891368050393 is an equidigital number, since it uses as much as digits as its factorization.

39891368050393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65718893606.

The product of its (nonzero) digits is 113374080, while the sum is 67.

The spelling of 39891368050393 in words is "thirty-nine trillion, eight hundred ninety-one billion, three hundred sixty-eight million, fifty thousand, three hundred ninety-three".