3581945264 has 20 divisors (see below), whose sum is σ = 7017999480. Its totient is φ = 1770848640.

The previous prime is 3581945233. The next prime is 3581945267. The reversal of 3581945264 is 4625491853.

It is not an unprimeable number, because it can be changed into a prime (3581945267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256282 + ... + 1259129.

It is an arithmetic number, because the mean of its divisors is an integer number (350899974).

Almost surely, 2^3581945264 is an apocalyptic number.

It is an amenable number.

3581945264 is a deficient number, since it is larger than the sum of its proper divisors (3436054216).

3581945264 is a wasteful number, since it uses less digits than its factorization.

3581945264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515508 (or 2515502 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 3581945264 is about 59849.3547500723. The cubic root of 3581945264 is about 1530.0524372932.

The spelling of 3581945264 in words is "three billion, five hundred eighty-one million, nine hundred forty-five thousand, two hundred sixty-four".