2478318233 has 4 divisors (see below), whose sum is σ = 2479142160. Its totient is φ = 2477494308.

The previous prime is 2478318229. The next prime is 2478318239. The reversal of 2478318233 is 3328138742.

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 not a de Polignac number, because 2478318233 - 2² = 2478318229 is a prime.

It is a super-2 number, since 2×2478318233² = 12284122528040484578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2478318239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407435 + ... + 413472.

It is an arithmetic number, because the mean of its divisors is an integer number (619785540).

Almost surely, 2^2478318233 is an apocalyptic number.

It is an amenable number.

2478318233 is a deficient number, since it is larger than the sum of its proper divisors (823927).

2478318233 is an equidigital number, since it uses as much as digits as its factorization.

2478318233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823926.

The product of its digits is 193536, while the sum is 41.

The square root of 2478318233 is about 49782.7101813471. The cubic root of 2478318233 is about 1353.2738526857.

The spelling of 2478318233 in words is "two billion, four hundred seventy-eight million, three hundred eighteen thousand, two hundred thirty-three".