2678316858 has 96 divisors (see below), whose sum is σ = 6917514240. Its totient is φ = 732810240.

The previous prime is 2678316853. The next prime is 2678316863. The reversal of 2678316858 is 8586138762.

It is an interprime number because it is at equal distance from previous prime (2678316853) and next prime (2678316863).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2678316853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375348 + ... + 382416.

It is an arithmetic number, because the mean of its divisors is an integer number (72057440).

Almost surely, 2^2678316858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2678316858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3458757120).

2678316858 is an abundant number, since it is smaller than the sum of its proper divisors (4239197382).

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

2678316858 is a wasteful number, since it uses less digits than its factorization.

2678316858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212 (or 7209 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 2678316858 is about 51752.4575068663. The cubic root of 2678316858 is about 1388.7390628265.

The spelling of 2678316858 in words is "two billion, six hundred seventy-eight million, three hundred sixteen thousand, eight hundred fifty-eight".