8434251678 has 8 divisors (see below), whose sum is σ = 16868503368. Its totient is φ = 2811417224.

The previous prime is 8434251671. The next prime is 8434251689. The reversal of 8434251678 is 8761524348.

It is a sphenic number, since it is the product of 3 distinct primes.

8434251678 is an admirable number.

It is a super-2 number, since 2×8434251678² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434251671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702854301 + ... + 702854312.

It is an arithmetic number, because the mean of its divisors is an integer number (2108562921).

Almost surely, 2^8434251678 is an apocalyptic number.

8434251678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8434251678 is a wasteful number, since it uses less digits than its factorization.

8434251678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405708618.

The product of its digits is 1290240, while the sum is 48.

The square root of 8434251678 is about 91838.1820268672. The cubic root of 8434251678 is about 2035.5519255064.

The spelling of 8434251678 in words is "eight billion, four hundred thirty-four million, two hundred fifty-one thousand, six hundred seventy-eight".