7769643466 has 16 divisors (see below), whose sum is σ = 12554406144. Its totient is φ = 3585005424.

The previous prime is 7769643421. The next prime is 7769643473. The reversal of 7769643466 is 6643469677.

It is a self number, because there is not a number n which added to its sum of digits gives 7769643466.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60315 + ... + 138481.

It is an arithmetic number, because the mean of its divisors is an integer number (784650384).

Almost surely, 2^7769643466 is an apocalyptic number.

7769643466 is a deficient number, since it is larger than the sum of its proper divisors (4784762678).

7769643466 is a wasteful number, since it uses less digits than its factorization.

7769643466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82005.

The product of its digits is 27433728, while the sum is 58.

The square root of 7769643466 is about 88145.5810917371. The cubic root of 7769643466 is about 1980.6163664520.

The spelling of 7769643466 in words is "seven billion, seven hundred sixty-nine million, six hundred forty-three thousand, four hundred sixty-six".