3920727893880 has 128 divisors (see below), whose sum is σ = 13443912345600. Its totient is φ = 896071928832.

The previous prime is 3920727893839. The next prime is 3920727893897. The reversal of 3920727893880 is 883987270293.

It is a happy number.

It is a congruent number.

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, 7889244 + ... + 8371476.

It is an arithmetic number, because the mean of its divisors is an integer number (105030565200).

Almost surely, 2^{3920727893880} is an apocalyptic number.

3920727893880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3920727893880 is an abundant number, since it is smaller than the sum of its proper divisors (9523184451720).

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

3920727893880 is a wasteful number, since it uses less digits than its factorization.

3920727893880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491933 (or 491929 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 66.

The spelling of 3920727893880 in words is "three trillion, nine hundred twenty billion, seven hundred twenty-seven million, eight hundred ninety-three thousand, eight hundred eighty".