4891123258 has 12 divisors (see below), whose sum is σ = 8534511162. Its totient is φ = 2096195640.

The previous prime is 4891123253. The next prime is 4891123327. The reversal of 4891123258 is 8523211984.

It can be written as a sum of positive squares in only one way, i.e., 4367491569 + 523631689 = 66087^2 + 22883^2 .

It is not an unprimeable number, because it can be changed into a prime (4891123253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24954613 + ... + 24954808.

Almost surely, 2^4891123258 is an apocalyptic number.

4891123258 is a deficient number, since it is larger than the sum of its proper divisors (3643387904).

4891123258 is a wasteful number, since it uses less digits than its factorization.

4891123258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49909437 (or 49909430 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 4891123258 is about 69936.5659580166. The cubic root of 4891123258 is about 1697.4729765068.

The spelling of 4891123258 in words is "four billion, eight hundred ninety-one million, one hundred twenty-three thousand, two hundred fifty-eight".