8257368258 has 80 divisors (see below), whose sum is σ = 19227732480. Its totient is φ = 2645784000.

The previous prime is 8257368199. The next prime is 8257368277. The reversal of 8257368258 is 8528637528.

8257368258 is a `hidden beast` number, since 8 + 2 + 573 + 68 + 2 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 752878 + ... + 763766.

It is an arithmetic number, because the mean of its divisors is an integer number (240346656).

Almost surely, 2^8257368258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8257368258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9613866240).

8257368258 is an abundant number, since it is smaller than the sum of its proper divisors (10970364222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8257368258 is a wasteful number, since it uses less digits than its factorization.

8257368258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085 (or 11076 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The square root of 8257368258 is about 90870.0624958517. The cubic root of 8257368258 is about 2021.2213848304.

The spelling of 8257368258 in words is "eight billion, two hundred fifty-seven million, three hundred sixty-eight thousand, two hundred fifty-eight".