2689461243 has 12 divisors (see below), whose sum is σ = 4439745648. Its totient is φ = 1536834960.

The previous prime is 2689461241. The next prime is 2689461253. The reversal of 2689461243 is 3421649862.

2689461243 is a `hidden beast` number, since 26 + 8 + 9 + 4 + 612 + 4 + 3 = 666.

It is not a de Polignac number, because 2689461243 - 2¹ = 2689461241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2689461241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21344868 + ... + 21344993.

It is an arithmetic number, because the mean of its divisors is an integer number (369978804).

Almost surely, 2^2689461243 is an apocalyptic number.

2689461243 is a deficient number, since it is larger than the sum of its proper divisors (1750284405).

2689461243 is a wasteful number, since it uses less digits than its factorization.

2689461243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42689874 (or 42689871 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 2689461243 is about 51860.0158407226. The cubic root of 2689461243 is about 1390.6625626906.

The spelling of 2689461243 in words is "two billion, six hundred eighty-nine million, four hundred sixty-one thousand, two hundred forty-three".