3880721089680 has 160 divisors (see below), whose sum is σ = 12419479769088. Its totient is φ = 1001381875200.

The previous prime is 3880721089639. The next prime is 3880721089709. The reversal of 3880721089680 is 869801270883.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114759975 + ... + 114793785.

Almost surely, 2^{3880721089680} is an apocalyptic number.

3880721089680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3880721089680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6209739884544).

3880721089680 is an abundant number, since it is smaller than the sum of its proper divisors (8538758679408).

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

3880721089680 is a wasteful number, since it uses less digits than its factorization.

3880721089680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49285 (or 49279 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 3880721089680 in words is "three trillion, eight hundred eighty billion, seven hundred twenty-one million, eighty-nine thousand, six hundred eighty".