39945470888 has 16 divisors (see below), whose sum is σ = 75845832000. Its totient is φ = 19719915696.

The previous prime is 39945470867. The next prime is 39945470893. The reversal of 39945470888 is 88807454993.

It is a happy number.

39945470888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31601798 + ... + 31603061.

It is an arithmetic number, because the mean of its divisors is an integer number (4740364500).

Almost surely, 2^39945470888 is an apocalyptic number.

It is an amenable number.

39945470888 is a deficient number, since it is larger than the sum of its proper divisors (35900361112).

39945470888 is a wasteful number, since it uses less digits than its factorization.

39945470888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63204944 (or 63204940 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 39945470888 in words is "thirty-nine billion, nine hundred forty-five million, four hundred seventy thousand, eight hundred eighty-eight".