39139256927231 has 4 divisors (see below), whose sum is σ = 39171845818464. Its totient is φ = 39106668036000.

The previous prime is 39139256927209. The next prime is 39139256927237. The reversal of 39139256927231 is 13272965293193.

39139256927231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39139256927231 is a prime.

It is a super-2 number, since 2×39139256927231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39139256927237) 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 in 3 ways as a sum of consecutive naturals, for example, 16294443815 + ... + 16294446216.

It is an arithmetic number, because the mean of its divisors is an integer number (9792961454616).

Almost surely, 2^{39139256927231} is an apocalyptic number.

39139256927231 is a deficient number, since it is larger than the sum of its proper divisors (32588891233).

39139256927231 is a wasteful number, since it uses less digits than its factorization.

39139256927231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32588891232.

The product of its digits is 33067440, while the sum is 62.

The spelling of 39139256927231 in words is "thirty-nine trillion, one hundred thirty-nine billion, two hundred fifty-six million, nine hundred twenty-seven thousand, two hundred thirty-one".