2686851838 has 8 divisors (see below), whose sum is σ = 4396666680. Its totient is φ = 1221296280.

The previous prime is 2686851833. The next prime is 2686851851. The reversal of 2686851838 is 8381586862.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686851833) 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, 61064793 + ... + 61064836.

It is an arithmetic number, because the mean of its divisors is an integer number (549583335).

Almost surely, 2^2686851838 is an apocalyptic number.

2686851838 is a deficient number, since it is larger than the sum of its proper divisors (1709814842).

2686851838 is a wasteful number, since it uses less digits than its factorization.

2686851838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122129642.

The product of its digits is 4423680, while the sum is 55.

The square root of 2686851838 is about 51834.8515769072. The cubic root of 2686851838 is about 1390.2126614224.

The spelling of 2686851838 in words is "two billion, six hundred eighty-six million, eight hundred fifty-one thousand, eight hundred thirty-eight".