3512581864 has 32 divisors (see below), whose sum is σ = 7286034240. Its totient is φ = 1574137600.

The previous prime is 3512581861. The next prime is 3512581879. The reversal of 3512581864 is 4681852153.

It is a self number, because there is not a number n which added to its sum of digits gives 3512581864.

It is not an unprimeable number, because it can be changed into a prime (3512581861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274849 + ... + 287344.

It is an arithmetic number, because the mean of its divisors is an integer number (227688570).

Almost surely, 2^3512581864 is an apocalyptic number.

It is an amenable number.

3512581864 is an abundant number, since it is smaller than the sum of its proper divisors (3773452376).

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

3512581864 is a wasteful number, since it uses less digits than its factorization.

3512581864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562281 (or 562277 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 3512581864 is about 59267.0385965083. The cubic root of 3512581864 is about 1520.1116411536. Note that the first 3 decimals are identical.

The spelling of 3512581864 in words is "three billion, five hundred twelve million, five hundred eighty-one thousand, eight hundred sixty-four".