39399496723 has 2 divisors, whose sum is σ = 39399496724. Its totient is φ = 39399496722.

The previous prime is 39399496711. The next prime is 39399496739. The reversal of 39399496723 is 32769499393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39399496723 - 2⁹ = 39399496211 is a prime.

It is not a weakly prime, because it can be changed into another prime (39399436723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19699748361 + 19699748362.

It is an arithmetic number, because the mean of its divisors is an integer number (19699748362).

Almost surely, 2^39399496723 is an apocalyptic number.

39399496723 is a deficient number, since it is larger than the sum of its proper divisors (1).

39399496723 is an equidigital number, since it uses as much as digits as its factorization.

39399496723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59521392, while the sum is 64.

The spelling of 39399496723 in words is "thirty-nine billion, three hundred ninety-nine million, four hundred ninety-six thousand, seven hundred twenty-three".