2689581382 has 4 divisors (see below), whose sum is σ = 4034372076. Its totient is φ = 1344790690.

The previous prime is 2689581299. The next prime is 2689581403. The reversal of 2689581382 is 2831859862.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672395344 + ... + 672395347.

It is an arithmetic number, because the mean of its divisors is an integer number (1008593019).

Almost surely, 2^2689581382 is an apocalyptic number.

2689581382 is a deficient number, since it is larger than the sum of its proper divisors (1344790694).

2689581382 is a wasteful number, since it uses less digits than its factorization.

2689581382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344790693.

The product of its digits is 1658880, while the sum is 52.

The square root of 2689581382 is about 51861.1741286292. The cubic root of 2689581382 is about 1390.6832694799.

The spelling of 2689581382 in words is "two billion, six hundred eighty-nine million, five hundred eighty-one thousand, three hundred eighty-two".