7699449905 has 16 divisors (see below), whose sum is σ = 10561985280. Its totient is φ = 5278252992.

The previous prime is 7699449883. The next prime is 7699449911. The reversal of 7699449905 is 5099449967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7699449905 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119036 + ... + 171954.

It is an arithmetic number, because the mean of its divisors is an integer number (660124080).

Almost surely, 2^7699449905 is an apocalyptic number.

It is an amenable number.

7699449905 is a deficient number, since it is larger than the sum of its proper divisors (2862535375).

7699449905 is a wasteful number, since it uses less digits than its factorization.

7699449905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57088.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The square root of 7699449905 is about 87746.5093607717. The cubic root of 7699449905 is about 1974.6337967615.

Adding to 7699449905 its sum of digits (62), we get a palindrome (7699449967).

The spelling of 7699449905 in words is "seven billion, six hundred ninety-nine million, four hundred forty-nine thousand, nine hundred five".