3368986996921 has 32 divisors (see below), whose sum is σ = 4176754686720. Its totient is φ = 2646134555904.

The previous prime is 3368986996913. The next prime is 3368986996943. The reversal of 3368986996921 is 1296996898633.

It is not a de Polignac number, because 3368986996921 - 2³ = 3368986996913 is a prime.

It is a super-2 number, since 2×3368986996921² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3368986996961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10212271 + ... + 10537003.

It is an arithmetic number, because the mean of its divisors is an integer number (130523583960).

Almost surely, 2^{3368986996921} is an apocalyptic number.

It is an amenable number.

3368986996921 is a deficient number, since it is larger than the sum of its proper divisors (807767689799).

3368986996921 is a wasteful number, since it uses less digits than its factorization.

3368986996921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325585.

The product of its digits is 1632586752, while the sum is 79.

The spelling of 3368986996921 in words is "three trillion, three hundred sixty-eight billion, nine hundred eighty-six million, nine hundred ninety-six thousand, nine hundred twenty-one".