3361891812 has 12 divisors (see below), whose sum is σ = 7844414256. Its totient is φ = 1120630600.

The previous prime is 3361891781. The next prime is 3361891837. The reversal of 3361891812 is 2181981633.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3361891812² = 22604633111185286688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140078814 + ... + 140078837.

It is an arithmetic number, because the mean of its divisors is an integer number (653701188).

Almost surely, 2^3361891812 is an apocalyptic number.

It is an amenable number.

3361891812 is an abundant number, since it is smaller than the sum of its proper divisors (4482522444).

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

3361891812 is a wasteful number, since it uses less digits than its factorization.

3361891812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280157658 (or 280157656 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 3361891812 is about 57981.8231172494. The cubic root of 3361891812 is about 1498.0555266604.

The spelling of 3361891812 in words is "three billion, three hundred sixty-one million, eight hundred ninety-one thousand, eight hundred twelve".