39790323839 has 4 divisors (see below), whose sum is σ = 45474655824. Its totient is φ = 34105991856.

The previous prime is 39790323803. The next prime is 39790323869. The reversal of 39790323839 is 93832309793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93832309793 = 31 ⋅3026848703.

It is a cyclic number.

It is not a de Polignac number, because 39790323839 - 2¹² = 39790319743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39790323869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842165982 + ... + 2842165995.

It is an arithmetic number, because the mean of its divisors is an integer number (11368663956).

Almost surely, 2^39790323839 is an apocalyptic number.

39790323839 is a deficient number, since it is larger than the sum of its proper divisors (5684331985).

39790323839 is an equidigital number, since it uses as much as digits as its factorization.

39790323839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684331984.

The product of its (nonzero) digits is 6613488, while the sum is 56.

The spelling of 39790323839 in words is "thirty-nine billion, seven hundred ninety million, three hundred twenty-three thousand, eight hundred thirty-nine".