2689490782 has 16 divisors (see below), whose sum is σ = 4402215792. Its totient is φ = 1222153920.

The previous prime is 2689490767. The next prime is 2689490801. The reversal of 2689490782 is 2870949862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74188 + ... + 104320.

It is an arithmetic number, because the mean of its divisors is an integer number (275138487).

Almost surely, 2^2689490782 is an apocalyptic number.

2689490782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2689490782 is a deficient number, since it is larger than the sum of its proper divisors (1712725010).

2689490782 is a wasteful number, since it uses less digits than its factorization.

2689490782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34203.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 2689490782 is about 51860.3006354572. The cubic root of 2689490782 is about 1390.6676539992.

The spelling of 2689490782 in words is "two billion, six hundred eighty-nine million, four hundred ninety thousand, seven hundred eighty-two".