2686341949 has 4 divisors (see below), whose sum is σ = 2778974460. Its totient is φ = 2593709440.

The previous prime is 2686341929. The next prime is 2686341953. The reversal of 2686341949 is 9491436862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 600593049 + 2085748900 = 24507^2 + 45670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2686341949 - 2¹³ = 2686333757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2686341896 and 2686341905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686341919) 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, 46316212 + ... + 46316269.

It is an arithmetic number, because the mean of its divisors is an integer number (694743615).

Almost surely, 2^2686341949 is an apocalyptic number.

2686341949 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2686341949 is a deficient number, since it is larger than the sum of its proper divisors (92632511).

2686341949 is an equidigital number, since it uses as much as digits as its factorization.

2686341949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92632510.

The product of its digits is 2239488, while the sum is 52.

The square root of 2686341949 is about 51829.9329441974. The cubic root of 2686341949 is about 1390.1247147558.

The spelling of 2686341949 in words is "two billion, six hundred eighty-six million, three hundred forty-one thousand, nine hundred forty-nine".