6578893540 has 12 divisors (see below), whose sum is σ = 13815676476. Its totient is φ = 2631557408.

The previous prime is 6578893537. The next prime is 6578893567. The reversal of 6578893540 is 453988756.

It can be written as a sum of positive squares in 2 ways, for example, as 2689874496 + 3889019044 = 51864^2 + 62362^2 .

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, 164472319 + ... + 164472358.

It is an arithmetic number, because the mean of its divisors is an integer number (1151306373).

Almost surely, 2^6578893540 is an apocalyptic number.

It is an amenable number.

6578893540 is an abundant number, since it is smaller than the sum of its proper divisors (7236782936).

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

6578893540 is a wasteful number, since it uses less digits than its factorization.

6578893540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328944686 (or 328944684 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The square root of 6578893540 is about 81110.3787440300. The cubic root of 6578893540 is about 1873.7757735325.

The spelling of 6578893540 in words is "six billion, five hundred seventy-eight million, eight hundred ninety-three thousand, five hundred forty".