2686949896 has 32 divisors (see below), whose sum is σ = 5106816000. Its totient is φ = 1325166336.

The previous prime is 2686949869. The next prime is 2686949897. The reversal of 2686949896 is 6989496862.

It is a super-2 number, since 2×2686949896² = 14439399487228821632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2686949897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110480 + ... + 1112896.

It is an arithmetic number, because the mean of its divisors is an integer number (159588000).

Almost surely, 2^2686949896 is an apocalyptic number.

It is an amenable number.

2686949896 is a deficient number, since it is larger than the sum of its proper divisors (2419866104).

2686949896 is a wasteful number, since it uses less digits than its factorization.

2686949896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4261 (or 4257 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 67.

The square root of 2686949896 is about 51835.7974376781. The cubic root of 2686949896 is about 1390.2295733852.

The spelling of 2686949896 in words is "two billion, six hundred eighty-six million, nine hundred forty-nine thousand, eight hundred ninety-six".