3804728505680 has 80 divisors (see below), whose sum is σ = 9313621211520. Its totient is φ = 1441474619904.

The previous prime is 3804728505679. The next prime is 3804728505769. The reversal of 3804728505680 is 865058274083.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6693074 + ... + 7239246.

It is an arithmetic number, because the mean of its divisors is an integer number (116420265144).

Almost surely, 2^{3804728505680} is an apocalyptic number.

It is an amenable number.

3804728505680 is an abundant number, since it is smaller than the sum of its proper divisors (5508892705840).

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

3804728505680 is a wasteful number, since it uses less digits than its factorization.

3804728505680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550788 (or 550782 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 3804728505680 in words is "three trillion, eight hundred four billion, seven hundred twenty-eight million, five hundred five thousand, six hundred eighty".