7686764418 has 32 divisors (see below), whose sum is σ = 16067640960. Its totient is φ = 2448391680.

The previous prime is 7686764411. The next prime is 7686764441. The reversal of 7686764418 is 8144676867.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7686764411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210838 + ... + 244593.

It is an arithmetic number, because the mean of its divisors is an integer number (502113780).

Almost surely, 2^7686764418 is an apocalyptic number.

7686764418 is an abundant number, since it is smaller than the sum of its proper divisors (8380876542).

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

7686764418 is a wasteful number, since it uses less digits than its factorization.

7686764418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455562.

The product of its digits is 10838016, while the sum is 57.

The square root of 7686764418 is about 87674.1947097320. The cubic root of 7686764418 is about 1973.5487425843.

The spelling of 7686764418 in words is "seven billion, six hundred eighty-six million, seven hundred sixty-four thousand, four hundred eighteen".