2478268385 has 8 divisors (see below), whose sum is σ = 2986687080. Its totient is φ = 1974104704.

The previous prime is 2478268379. The next prime is 2478268421. The reversal of 2478268385 is 5838628742.

It can be written as a sum of positive squares in 4 ways, for example, as 303351889 + 2174916496 = 17417^2 + 46636^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2478268385 - 2¹² = 2478264289 is a prime.

It is a super-2 number, since 2×2478268385² = 12283628376181016450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062470 + ... + 1064799.

It is an arithmetic number, because the mean of its divisors is an integer number (373335885).

Almost surely, 2^2478268385 is an apocalyptic number.

It is an amenable number.

2478268385 is a deficient number, since it is larger than the sum of its proper divisors (508418695).

2478268385 is a wasteful number, since it uses less digits than its factorization.

2478268385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127507.

The product of its digits is 5160960, while the sum is 53.

The square root of 2478268385 is about 49782.2095230816. The cubic root of 2478268385 is about 1353.2647795373.

The spelling of 2478268385 in words is "two billion, four hundred seventy-eight million, two hundred sixty-eight thousand, three hundred eighty-five".