7684985567 has 4 divisors (see below), whose sum is σ = 8782840656. Its totient is φ = 6587130480.

The previous prime is 7684985491. The next prime is 7684985573. The reversal of 7684985567 is 7655894867.

7684985567 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7684985567 - 2¹⁶ = 7684920031 is a prime.

It is a super-2 number, since 2×7684985567² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7684985597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548927534 + ... + 548927547.

It is an arithmetic number, because the mean of its divisors is an integer number (2195710164).

Almost surely, 2^7684985567 is an apocalyptic number.

7684985567 is a deficient number, since it is larger than the sum of its proper divisors (1097855089).

7684985567 is a wasteful number, since it uses less digits than its factorization.

7684985567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097855088.

The product of its digits is 101606400, while the sum is 65.

The square root of 7684985567 is about 87664.0494558630. The cubic root of 7684985567 is about 1973.3964930028.

The spelling of 7684985567 in words is "seven billion, six hundred eighty-four million, nine hundred eighty-five thousand, five hundred sixty-seven".