2578351315 has 4 divisors (see below), whose sum is σ = 3094021584. Its totient is φ = 2062681048.

The previous prime is 2578351309. The next prime is 2578351403. The reversal of 2578351315 is 5131538752.

2578351315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2578351315 - 2¹³ = 2578343123 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 257835127 + ... + 257835136.

It is an arithmetic number, because the mean of its divisors is an integer number (773505396).

Almost surely, 2^2578351315 is an apocalyptic number.

2578351315 is a deficient number, since it is larger than the sum of its proper divisors (515670269).

2578351315 is an equidigital number, since it uses as much as digits as its factorization.

2578351315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515670268.

The product of its digits is 126000, while the sum is 40.

The square root of 2578351315 is about 50777.4685761313. The cubic root of 2578351315 is about 1371.2417595684.

The spelling of 2578351315 in words is "two billion, five hundred seventy-eight million, three hundred fifty-one thousand, three hundred fifteen".