7720407065 has 8 divisors (see below), whose sum is σ = 10587986880. Its totient is φ = 5293993392.

The previous prime is 7720407053. The next prime is 7720407103. The reversal of 7720407065 is 5607040277.

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 7720407065 - 2⁶ = 7720407001 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, 110291495 + ... + 110291564.

It is an arithmetic number, because the mean of its divisors is an integer number (1323498360).

Almost surely, 2^7720407065 is an apocalyptic number.

It is an amenable number.

7720407065 is a deficient number, since it is larger than the sum of its proper divisors (2867579815).

7720407065 is a wasteful number, since it uses less digits than its factorization.

7720407065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220583071.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 7720407065 is about 87865.8469770821. The cubic root of 7720407065 is about 1976.4237612835.

The spelling of 7720407065 in words is "seven billion, seven hundred twenty million, four hundred seven thousand, sixty-five".