2678586867 has 32 divisors (see below), whose sum is σ = 4434635520. Its totient is φ = 1583784000.

The previous prime is 2678586839. The next prime is 2678586871. The reversal of 2678586867 is 7686858762.

It is not a de Polignac number, because 2678586867 - 2⁶ = 2678586803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2678586167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97809 + ... + 122162.

It is an arithmetic number, because the mean of its divisors is an integer number (138582360).

Almost surely, 2^2678586867 is an apocalyptic number.

2678586867 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2678586867 is a deficient number, since it is larger than the sum of its proper divisors (1756048653).

2678586867 is a wasteful number, since it uses less digits than its factorization.

2678586867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220032 (or 220026 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The square root of 2678586867 is about 51755.0660998515. The cubic root of 2678586867 is about 1388.7857288815.

The spelling of 2678586867 in words is "two billion, six hundred seventy-eight million, five hundred eighty-six thousand, eight hundred sixty-seven".