39680796040 has 64 divisors (see below), whose sum is σ = 91048224960. Its totient is φ = 15561212160.

The previous prime is 39680796017. The next prime is 39680796047. The reversal of 39680796040 is 4069708693.

It is not an unprimeable number, because it can be changed into a prime (39680796047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389302 + ... + 480538.

It is an arithmetic number, because the mean of its divisors is an integer number (1422628515).

Almost surely, 2^39680796040 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 39680796040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45524112480).

39680796040 is an abundant number, since it is smaller than the sum of its proper divisors (51367428920).

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

39680796040 is a wasteful number, since it uses less digits than its factorization.

39680796040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91462 (or 91458 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 39680796040 in words is "thirty-nine billion, six hundred eighty million, seven hundred ninety-six thousand, forty".