7669844256 has 48 divisors (see below), whose sum is σ = 20677495104. Its totient is φ = 2487515904.

The previous prime is 7669844251. The next prime is 7669844263. The reversal of 7669844256 is 6524489667.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×7669844256² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7669844196 and 7669844205.

It is not an unprimeable number, because it can be changed into a prime (7669844251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076100 + ... + 1083203.

It is an arithmetic number, because the mean of its divisors is an integer number (430781148).

Almost surely, 2^7669844256 is an apocalyptic number.

It is an amenable number.

7669844256 is an abundant number, since it is smaller than the sum of its proper divisors (13007650848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7669844256 is a wasteful number, since it uses less digits than its factorization.

7669844256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159353 (or 2159345 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The square root of 7669844256 is about 87577.6470110952. The cubic root of 7669844256 is about 1972.0996154833.

The spelling of 7669844256 in words is "seven billion, six hundred sixty-nine million, eight hundred forty-four thousand, two hundred fifty-six".