2578363145 has 8 divisors (see below), whose sum is σ = 3094338120. Its totient is φ = 2062488960.

The previous prime is 2578363127. The next prime is 2578363147. The reversal of 2578363145 is 5413638752.

2578363145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 242767561 + 2335595584 = 15581^2 + 48328^2 .

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

It is not a de Polignac number, because 2578363145 - 2⁸ = 2578362889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2578363096 and 2578363105.

It is not an unprimeable number, because it can be changed into a prime (2578363147) 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, 53351 + ... + 89459.

It is an arithmetic number, because the mean of its divisors is an integer number (386792265).

Almost surely, 2^2578363145 is an apocalyptic number.

It is an amenable number.

2578363145 is a deficient number, since it is larger than the sum of its proper divisors (515974975).

2578363145 is a wasteful number, since it uses less digits than its factorization.

2578363145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50395.

The product of its digits is 604800, while the sum is 44.

The square root of 2578363145 is about 50777.5850646720. The cubic root of 2578363145 is about 1371.2438567438.

The spelling of 2578363145 in words is "two billion, five hundred seventy-eight million, three hundred sixty-three thousand, one hundred forty-five".