8257785354 has 64 divisors (see below), whose sum is σ = 22585409280. Its totient is φ = 2177876160.

The previous prime is 8257785337. The next prime is 8257785379. The reversal of 8257785354 is 4535877528.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8257785354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 835317 + ... + 845144.

It is an arithmetic number, because the mean of its divisors is an integer number (352897020).

Almost surely, 2^8257785354 is an apocalyptic number.

8257785354 is an abundant number, since it is smaller than the sum of its proper divisors (14327623926).

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

8257785354 is a wasteful number, since it uses less digits than its factorization.

8257785354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680492 (or 1680486 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 54.

The square root of 8257785354 is about 90872.3574801490. The cubic root of 8257785354 is about 2021.2554162205.

The spelling of 8257785354 in words is "eight billion, two hundred fifty-seven million, seven hundred eighty-five thousand, three hundred fifty-four".