2258899778 has 16 divisors (see below), whose sum is σ = 3568086720. Its totient is φ = 1069584336.

The previous prime is 2258899777. The next prime is 2258899781. The reversal of 2258899778 is 8779988522.

It is not an unprimeable number, because it can be changed into a prime (2258899777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100076 + ... + 120552.

It is an arithmetic number, because the mean of its divisors is an integer number (223005420).

Almost surely, 2^2258899778 is an apocalyptic number.

2258899778 is a deficient number, since it is larger than the sum of its proper divisors (1309186942).

2258899778 is a wasteful number, since it uses less digits than its factorization.

2258899778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23401.

The product of its digits is 40642560, while the sum is 65.

The square root of 2258899778 is about 47527.8842154792. The cubic root of 2258899778 is about 1312.0961290765.

The spelling of 2258899778 in words is "two billion, two hundred fifty-eight million, eight hundred ninety-nine thousand, seven hundred seventy-eight".