39443520742 has 4 divisors (see below), whose sum is σ = 59165281116. Its totient is φ = 19721760370.

The previous prime is 39443520713. The next prime is 39443520757. The reversal of 39443520742 is 24702534493.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9860880184 + ... + 9860880187.

It is an arithmetic number, because the mean of its divisors is an integer number (14791320279).

Almost surely, 2^39443520742 is an apocalyptic number.

39443520742 is a deficient number, since it is larger than the sum of its proper divisors (19721760374).

39443520742 is a wasteful number, since it uses less digits than its factorization.

39443520742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721760373.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 39443520742 in words is "thirty-nine billion, four hundred forty-three million, five hundred twenty thousand, seven hundred forty-two".