39980611720 has 32 divisors (see below), whose sum is σ = 102807288000. Its totient is φ = 13707638208.

The previous prime is 39980611709. The next prime is 39980611721. The reversal of 39980611720 is 2711608993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39980611721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71393670 + ... + 71394229.

It is an arithmetic number, because the mean of its divisors is an integer number (3212727750).

Almost surely, 2^39980611720 is an apocalyptic number.

It is an amenable number.

39980611720 is an abundant number, since it is smaller than the sum of its proper divisors (62826676280).

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

39980611720 is a wasteful number, since it uses less digits than its factorization.

39980611720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142787917 (or 142787913 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 39980611720 in words is "thirty-nine billion, nine hundred eighty million, six hundred eleven thousand, seven hundred twenty".