2258191905 has 16 divisors (see below), whose sum is σ = 3617659584. Its totient is φ = 1202851520.

The previous prime is 2258191877. The next prime is 2258191907. The reversal of 2258191905 is 5091918522.

It is not a de Polignac number, because 2258191905 - 2⁷ = 2258191777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2258191907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82491 + ... + 106400.

It is an arithmetic number, because the mean of its divisors is an integer number (226103724).

Almost surely, 2^2258191905 is an apocalyptic number.

It is an amenable number.

2258191905 is a deficient number, since it is larger than the sum of its proper divisors (1359467679).

2258191905 is a wasteful number, since it uses less digits than its factorization.

2258191905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189696.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 2258191905 is about 47520.4367088519. The cubic root of 2258191905 is about 1311.9590572642.

The spelling of 2258191905 in words is "two billion, two hundred fifty-eight million, one hundred ninety-one thousand, nine hundred five".