2186747049 has 8 divisors (see below), whose sum is σ = 2915977792. Its totient is φ = 1457673840.

The previous prime is 2186747041. The next prime is 2186747053. The reversal of 2186747049 is 9407476812.

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

It is not a de Polignac number, because 2186747049 - 2³ = 2186747041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2186746989 and 2186747007.

It is not an unprimeable number, because it can be changed into a prime (2186747041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894 + ... + 66159.

It is an arithmetic number, because the mean of its divisors is an integer number (364497224).

Almost surely, 2^2186747049 is an apocalyptic number.

It is an amenable number.

2186747049 is a deficient number, since it is larger than the sum of its proper divisors (729230743).

2186747049 is a wasteful number, since it uses less digits than its factorization.

2186747049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78767.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 2186747049 is about 46762.6672571187. The cubic root of 2186747049 is about 1297.9745676612.

The spelling of 2186747049 in words is "two billion, one hundred eighty-six million, seven hundred forty-seven thousand, forty-nine".