7666886412 has 48 divisors (see below), whose sum is σ = 20339383680. Its totient is φ = 2496194064.

The previous prime is 7666886407. The next prime is 7666886413. The reversal of 7666886412 is 2146886667.

It is a super-2 number, since 2×7666886412² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7666886413) 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, 820818 + ... + 830105.

It is an arithmetic number, because the mean of its divisors is an integer number (423737160).

Almost surely, 2^7666886412 is an apocalyptic number.

It is an amenable number.

7666886412 is an abundant number, since it is smaller than the sum of its proper divisors (12672497268).

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

7666886412 is a wasteful number, since it uses less digits than its factorization.

7666886412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650979 (or 1650971 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 7666886412 is about 87560.7584023802. The cubic root of 7666886412 is about 1971.8460721767.

The spelling of 7666886412 in words is "seven billion, six hundred sixty-six million, eight hundred eighty-six thousand, four hundred twelve".