39980737908 has 36 divisors (see below), whose sum is σ = 103793841060. Its totient is φ = 12966725376.

The previous prime is 39980737847. The next prime is 39980737957. The reversal of 39980737908 is 80973708993.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14110588944 + 25870148964 = 118788^2 + 160842^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 in 11 ways as a sum of consecutive naturals, for example, 15006453 + ... + 15009116.

Almost surely, 2^39980737908 is an apocalyptic number.

It is an amenable number.

39980737908 is an abundant number, since it is smaller than the sum of its proper divisors (63813103152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39980737908 is a wasteful number, since it uses less digits than its factorization.

39980737908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30015616 (or 30015611 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 39980737908 in words is "thirty-nine billion, nine hundred eighty million, seven hundred thirty-seven thousand, nine hundred eight".