2578395353 has 4 divisors (see below), whose sum is σ = 2589957888. Its totient is φ = 2566832820.

The previous prime is 2578395343. The next prime is 2578395359. The reversal of 2578395353 is 3535938752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2578395353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2578395359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5780933 + ... + 5781378.

It is an arithmetic number, because the mean of its divisors is an integer number (647489472).

Almost surely, 2^2578395353 is an apocalyptic number.

It is an amenable number.

2578395353 is a deficient number, since it is larger than the sum of its proper divisors (11562535).

2578395353 is a wasteful number, since it uses less digits than its factorization.

2578395353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11562534.

The product of its digits is 3402000, while the sum is 50.

The square root of 2578395353 is about 50777.9022114935. The cubic root of 2578395353 is about 1371.2495664177.

The spelling of 2578395353 in words is "two billion, five hundred seventy-eight million, three hundred ninety-five thousand, three hundred fifty-three".