2258838778 has 8 divisors (see below), whose sum is σ = 3872295072. Its totient is φ = 968073756.

The previous prime is 2258838749. The next prime is 2258838793. The reversal of 2258838778 is 8778388522.

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

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, 80672800 + ... + 80672827.

It is an arithmetic number, because the mean of its divisors is an integer number (484036884).

Almost surely, 2^2258838778 is an apocalyptic number.

2258838778 is a deficient number, since it is larger than the sum of its proper divisors (1613456294).

2258838778 is a wasteful number, since it uses less digits than its factorization.

2258838778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161345636.

The product of its digits is 12042240, while the sum is 58.

The square root of 2258838778 is about 47527.2424826015. The cubic root of 2258838778 is about 1312.0843182258.

The spelling of 2258838778 in words is "two billion, two hundred fifty-eight million, eight hundred thirty-eight thousand, seven hundred seventy-eight".