3384812806728 has 16 divisors (see below), whose sum is σ = 8462032016880. Its totient is φ = 1128270935568.

The previous prime is 3384812806717. The next prime is 3384812806729. The reversal of 3384812806728 is 8276082184833.

It is a super-2 number, since 2×3384812806728² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3384812806729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70516933450 + ... + 70516933497.

It is an arithmetic number, because the mean of its divisors is an integer number (528877001055).

Almost surely, 2^{3384812806728} is an apocalyptic number.

It is an amenable number.

3384812806728 is an abundant number, since it is smaller than the sum of its proper divisors (5077219210152).

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

3384812806728 is a wasteful number, since it uses less digits than its factorization.

3384812806728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141033866956 (or 141033866952 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 3384812806728 in words is "three trillion, three hundred eighty-four billion, eight hundred twelve million, eight hundred six thousand, seven hundred twenty-eight".