2578057830 has 24 divisors (see below), whose sum is σ = 6702950592. Its totient is φ = 687482064.

The previous prime is 2578057829. The next prime is 2578057847. The reversal of 2578057830 is 387508752.

2578057830 is a `hidden beast` number, since 2 + 5 + 78 + 0 + 578 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14322454 + ... + 14322633.

It is an arithmetic number, because the mean of its divisors is an integer number (279289608).

Almost surely, 2^2578057830 is an apocalyptic number.

2578057830 is an abundant number, since it is smaller than the sum of its proper divisors (4124892762).

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

2578057830 is a wasteful number, since it uses less digits than its factorization.

2578057830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28645100 (or 28645097 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2578057830 is about 50774.5785802305. The cubic root of 2578057830 is about 1371.1897296587.

The spelling of 2578057830 in words is "two billion, five hundred seventy-eight million, fifty-seven thousand, eight hundred thirty".