39345644078 has 12 divisors (see below), whose sum is σ = 63907570368. Its totient is φ = 18159527880.

The previous prime is 39345644077. The next prime is 39345644081. The reversal of 39345644078 is 87044654393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39345644077) 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 5 ways as a sum of consecutive naturals, for example, 58203278 + ... + 58203953.

It is an arithmetic number, because the mean of its divisors is an integer number (5325630864).

Almost surely, 2^39345644078 is an apocalyptic number.

39345644078 is a deficient number, since it is larger than the sum of its proper divisors (24561926290).

39345644078 is a wasteful number, since it uses less digits than its factorization.

39345644078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116407259 (or 116407246 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 39345644078 in words is "thirty-nine billion, three hundred forty-five million, six hundred forty-four thousand, seventy-eight".