2578496394 has 16 divisors (see below), whose sum is σ = 5177541600. Its totient is φ = 856074000.

The previous prime is 2578496383. The next prime is 2578496399. The reversal of 2578496394 is 4936948752.

2578496394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2578496399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854569 + ... + 857580.

It is an arithmetic number, because the mean of its divisors is an integer number (323596350).

Almost surely, 2^2578496394 is an apocalyptic number.

2578496394 is an abundant number, since it is smaller than the sum of its proper divisors (2599045206).

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

2578496394 is a wasteful number, since it uses less digits than its factorization.

2578496394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712405.

The product of its digits is 13063680, while the sum is 57.

The square root of 2578496394 is about 50778.8971325688. The cubic root of 2578496394 is about 1371.2674781546.

The spelling of 2578496394 in words is "two billion, five hundred seventy-eight million, four hundred ninety-six thousand, three hundred ninety-four".