3225578638528 has 28 divisors (see below), whose sum is σ = 6401411263192. Its totient is φ = 1612624619520.

The previous prime is 3225578638501. The next prime is 3225578638547. The reversal of 3225578638528 is 8258368755223.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 3225578638528.

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, 1940625 + ... + 3196432.

Almost surely, 2^{3225578638528} is an apocalyptic number.

It is an amenable number.

3225578638528 is a deficient number, since it is larger than the sum of its proper divisors (3175832624664).

3225578638528 is an equidigital number, since it uses as much as digits as its factorization.

3225578638528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146880 (or 5146870 counting only the distinct ones).

The product of its digits is 193536000, while the sum is 64.

The spelling of 3225578638528 in words is "three trillion, two hundred twenty-five billion, five hundred seventy-eight million, six hundred thirty-eight thousand, five hundred twenty-eight".