2582578325578 has 8 divisors (see below), whose sum is σ = 3968352061380. Its totient is φ = 1259794305120.

The previous prime is 2582578325573. The next prime is 2582578325597. The reversal of 2582578325578 is 8755238752852.

It can be written as a sum of positive squares in 2 ways, for example, as 2572068590289 + 10509735289 = 1603767^2 + 102517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2582578325573) 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, 15747428733 + ... + 15747428896.

Almost surely, 2^{2582578325578} is an apocalyptic number.

2582578325578 is a deficient number, since it is larger than the sum of its proper divisors (1385773735802).

2582578325578 is a wasteful number, since it uses less digits than its factorization.

2582578325578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31494857672.

The product of its digits is 376320000, while the sum is 67.

The spelling of 2582578325578 in words is "two trillion, five hundred eighty-two billion, five hundred seventy-eight million, three hundred twenty-five thousand, five hundred seventy-eight".