7722464653521 has 12 divisors (see below), whose sum is σ = 11155937849472. Its totient is φ = 5147725145976.

The previous prime is 7722464653511. The next prime is 7722464653537. The reversal of 7722464653521 is 1253564642277.

7722464653521 is a `hidden beast` number, since 7 + 7 + 2 + 2 + 4 + 64 + 6 + 53 + 521 = 666.

It is not a de Polignac number, because 7722464653521 - 2¹⁵ = 7722464620753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7722464653511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48634921 + ... + 48793446.

It is an arithmetic number, because the mean of its divisors is an integer number (929661487456).

Almost surely, 2^{7722464653521} is an apocalyptic number.

It is an amenable number.

7722464653521 is a deficient number, since it is larger than the sum of its proper divisors (3433473195951).

7722464653521 is a wasteful number, since it uses less digits than its factorization.

7722464653521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97437180 (or 97437177 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 54.

The spelling of 7722464653521 in words is "seven trillion, seven hundred twenty-two billion, four hundred sixty-four million, six hundred fifty-three thousand, five hundred twenty-one".