4666578786 has 12 divisors (see below), whose sum is σ = 10110920742. Its totient is φ = 1555526256.

The previous prime is 4666578781. The next prime is 4666578797. The reversal of 4666578786 is 6878756664.

It can be written as a sum of positive squares in only one way, i.e., 3241138761 + 1425440025 = 56931^2 + 37755^2 .

It is not an unprimeable number, because it can be changed into a prime (4666578781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129627171 + ... + 129627206.

Almost surely, 2^4666578786 is an apocalyptic number.

4666578786 is an abundant number, since it is smaller than the sum of its proper divisors (5444341956).

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

4666578786 is a wasteful number, since it uses less digits than its factorization.

4666578786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259254385 (or 259254382 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The square root of 4666578786 is about 68312.3618827515. The cubic root of 4666578786 is about 1671.0888217803.

The spelling of 4666578786 in words is "four billion, six hundred sixty-six million, five hundred seventy-eight thousand, seven hundred eighty-six".