7720107226705 has 8 divisors (see below), whose sum is σ = 9264212821800. Its totient is φ = 6176029681536.

The previous prime is 7720107226697. The next prime is 7720107226717. The reversal of 7720107226705 is 5076227010277.

It can be written as a sum of positive squares in 4 ways, for example, as 1765648315729 + 5954458910976 = 1328777^2 + 2440176^2 .

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 7720107226705 - 2³ = 7720107226697 is a prime.

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, 6402150 + ... + 7511839.

It is an arithmetic number, because the mean of its divisors is an integer number (1158026602725).

Almost surely, 2^{7720107226705} is an apocalyptic number.

It is an amenable number.

7720107226705 is a deficient number, since it is larger than the sum of its proper divisors (1544105595095).

7720107226705 is a wasteful number, since it uses less digits than its factorization.

7720107226705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14024963.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 7720107226705 in words is "seven trillion, seven hundred twenty billion, one hundred seven million, two hundred twenty-six thousand, seven hundred five".