8498876778 has 64 divisors (see below), whose sum is σ = 21677310720. Its totient is φ = 2417803776.

The previous prime is 8498876777. The next prime is 8498876779. The reversal of 8498876778 is 8776788948.

It is a happy number.

8498876778 is a `hidden beast` number, since 8 + 498 + 8 + 7 + 67 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (8498876777) and next prime (8498876779).

It is a super-2 number, since 2×8498876778² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8498876777) by changing a digit.

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, 39826 + ... + 136322.

It is an arithmetic number, because the mean of its divisors is an integer number (338707980).

Almost surely, 2^8498876778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8498876778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10838655360).

8498876778 is an abundant number, since it is smaller than the sum of its proper divisors (13178433942).

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

8498876778 is a wasteful number, since it uses less digits than its factorization.

8498876778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96748 (or 96742 counting only the distinct ones).

The product of its digits is 303464448, while the sum is 72.

The square root of 8498876778 is about 92189.3528451090. The cubic root of 8498876778 is about 2040.7376527868.

The spelling of 8498876778 in words is "eight billion, four hundred ninety-eight million, eight hundred seventy-six thousand, seven hundred seventy-eight".