39305305972 has 12 divisors (see below), whose sum is σ = 68797557220. Its totient is φ = 19648861056.

The previous prime is 39305305961. The next prime is 39305305987. The reversal of 39305305972 is 27950350393.

It can be written as a sum of positive squares in 2 ways, for example, as 32690086416 + 6615219556 = 180804^2 + 81334^2 .

It is a congruent number.

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, 924597 + ... + 966172.

Almost surely, 2^39305305972 is an apocalyptic number.

It is an amenable number.

39305305972 is a deficient number, since it is larger than the sum of its proper divisors (29492251248).

39305305972 is a wasteful number, since it uses less digits than its factorization.

39305305972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895970 (or 1895968 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 46.

The spelling of 39305305972 in words is "thirty-nine billion, three hundred five million, three hundred five thousand, nine hundred seventy-two".