2689688492 has 6 divisors (see below), whose sum is σ = 4706954868. Its totient is φ = 1344844244.

The previous prime is 2689688461. The next prime is 2689688497. The reversal of 2689688492 is 2948869862.

It is not an unprimeable number, because it can be changed into a prime (2689688497) by changing a digit.

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, 336211058 + ... + 336211065.

It is an arithmetic number, because the mean of its divisors is an integer number (784492478).

Almost surely, 2^2689688492 is an apocalyptic number.

It is an amenable number.

2689688492 is a deficient number, since it is larger than the sum of its proper divisors (2017266376).

2689688492 is a wasteful number, since it uses less digits than its factorization.

2689688492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672422127 (or 672422125 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 62.

The square root of 2689688492 is about 51862.2067791181. The cubic root of 2689688492 is about 1390.7017301109.

The spelling of 2689688492 in words is "two billion, six hundred eighty-nine million, six hundred eighty-eight thousand, four hundred ninety-two".