7720681105 has 8 divisors (see below), whose sum is σ = 9265660992. Its totient is φ = 6175982448.

The previous prime is 7720681093. The next prime is 7720681153. The reversal of 7720681105 is 5011860277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7720681105 - 2⁹ = 7720680593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4267 + ... + 124336.

It is an arithmetic number, because the mean of its divisors is an integer number (1158207624).

Almost surely, 2^7720681105 is an apocalyptic number.

It is an amenable number.

7720681105 is a deficient number, since it is larger than the sum of its proper divisors (1544979887).

7720681105 is a wasteful number, since it uses less digits than its factorization.

7720681105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140615.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 7720681105 is about 87867.4063859859. The cubic root of 7720681105 is about 1976.4471457482.

The spelling of 7720681105 in words is "seven billion, seven hundred twenty million, six hundred eighty-one thousand, one hundred five".