3988780415980 has 24 divisors (see below), whose sum is σ = 8408288462112. Its totient is φ = 1589445578112.

The previous prime is 3988780415929. The next prime is 3988780415981. The reversal of 3988780415980 is 895140878893.

It is not an unprimeable number, because it can be changed into a prime (3988780415981) 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, 379156377 + ... + 379166896.

It is an arithmetic number, because the mean of its divisors is an integer number (350345352588).

Almost surely, 2^{3988780415980} is an apocalyptic number.

It is an amenable number.

3988780415980 is an abundant number, since it is smaller than the sum of its proper divisors (4419508046132).

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

3988780415980 is a wasteful number, since it uses less digits than its factorization.

3988780415980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758323545 (or 758323543 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 70.

The spelling of 3988780415980 in words is "three trillion, nine hundred eighty-eight billion, seven hundred eighty million, four hundred fifteen thousand, nine hundred eighty".