3486781212 has 12 divisors (see below), whose sum is σ = 8135822856. Its totient is φ = 1162260400.

The previous prime is 3486781211. The next prime is 3486781217. The reversal of 3486781212 is 2121876843.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3486781211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145282539 + ... + 145282562.

It is an arithmetic number, because the mean of its divisors is an integer number (677985238).

Almost surely, 2^3486781212 is an apocalyptic number.

It is an amenable number.

3486781212 is an abundant number, since it is smaller than the sum of its proper divisors (4649041644).

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

3486781212 is a wasteful number, since it uses less digits than its factorization.

3486781212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290565108 (or 290565106 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 3486781212 is about 59048.9729969963. The cubic root of 3486781212 is about 1516.3806447125.

The spelling of 3486781212 in words is "three billion, four hundred eighty-six million, seven hundred eighty-one thousand, two hundred twelve".