39928769720000 has 1120 divisors, whose sum is σ = 123160888300032. Its totient is φ = 12527198208000.

The previous prime is 39928769719981. The next prime is 39928769720027. The reversal of 39928769720000 is 2796782993.

It is a tau number, because it is divible by the number of its divisors (1120).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 76345639739 + ... + 76345640261.

Almost surely, 2^{39928769720000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39928769720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61580444150016).

39928769720000 is an abundant number, since it is smaller than the sum of its proper divisors (83232118580032).

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

39928769720000 is a wasteful number, since it uses less digits than its factorization.

39928769720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 39928769720000 in words is "thirty-nine trillion, nine hundred twenty-eight billion, seven hundred sixty-nine million, seven hundred twenty thousand".