3186634656 has 48 divisors (see below), whose sum is σ = 8370057024. Its totient is φ = 1061558784.

The previous prime is 3186634651. The next prime is 3186634667. The reversal of 3186634656 is 6564366813.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (3186634651) 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 7 ways as a sum of consecutive naturals, for example, 161860 + ... + 180476.

It is an arithmetic number, because the mean of its divisors is an integer number (174376188).

Almost surely, 2^3186634656 is an apocalyptic number.

It is an amenable number.

3186634656 is an abundant number, since it is smaller than the sum of its proper divisors (5183422368).

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

3186634656 is a wasteful number, since it uses less digits than its factorization.

3186634656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20413 (or 20405 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 48.

The square root of 3186634656 is about 56450.2848177049. The cubic root of 3186634656 is about 1471.5581386824.

The spelling of 3186634656 in words is "three billion, one hundred eighty-six million, six hundred thirty-four thousand, six hundred fifty-six".