8258427891 has 24 divisors (see below), whose sum is σ = 13675999584. Its totient is φ = 4704203520.

The previous prime is 8258427887. The next prime is 8258427917. The reversal of 8258427891 is 1987248528.

8258427891 is a `hidden beast` number, since 82 + 58 + 427 + 8 + 91 = 666.

It is not a de Polignac number, because 8258427891 - 2² = 8258427887 is a prime.

It is a super-3 number, since 3×8258427891³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8258427851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186790 + ... + 226731.

It is an arithmetic number, because the mean of its divisors is an integer number (569833316).

Almost surely, 2^8258427891 is an apocalyptic number.

8258427891 is a deficient number, since it is larger than the sum of its proper divisors (5417571693).

8258427891 is a wasteful number, since it uses less digits than its factorization.

8258427891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413851 (or 413848 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 8258427891 is about 90875.8927934136. The cubic root of 8258427891 is about 2021.3078393845.

The spelling of 8258427891 in words is "eight billion, two hundred fifty-eight million, four hundred twenty-seven thousand, eight hundred ninety-one".