39923434726 has 12 divisors (see below), whose sum is σ = 69662319948. Its totient is φ = 17110043412.

The previous prime is 39923434721. The next prime is 39923434741. The reversal of 39923434726 is 62743432993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39923434721) 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 in 5 ways as a sum of consecutive naturals, for example, 203690896 + ... + 203691091.

It is an arithmetic number, because the mean of its divisors is an integer number (5805193329).

Almost surely, 2^39923434726 is an apocalyptic number.

39923434726 is a deficient number, since it is larger than the sum of its proper divisors (29738885222).

39923434726 is a wasteful number, since it uses less digits than its factorization.

39923434726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407382003 (or 407381996 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 52.

The spelling of 39923434726 in words is "thirty-nine billion, nine hundred twenty-three million, four hundred thirty-four thousand, seven hundred twenty-six".