3901666773808 has 120 divisors (see below), whose sum is σ = 8488080584720. Its totient is φ = 1732215767040.

The previous prime is 3901666773761. The next prime is 3901666773833. The reversal of 3901666773808 is 8083776661093.

3901666773808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3901666773808² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3901666773808.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21081160 + ... + 21265432.

Almost surely, 2^{3901666773808} is an apocalyptic number.

3901666773808 is a gapful number since it is divisible by the number (38) 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 3901666773808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244040292360).

3901666773808 is an abundant number, since it is smaller than the sum of its proper divisors (4586413810912).

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

3901666773808 is a wasteful number, since it uses less digits than its factorization.

3901666773808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184575 (or 184552 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 3901666773808 in words is "three trillion, nine hundred one billion, six hundred sixty-six million, seven hundred seventy-three thousand, eight hundred eight".