2664689706 has 48 divisors (see below), whose sum is σ = 6616771200. Its totient is φ = 759206304.

The previous prime is 2664689693. The next prime is 2664689719. The reversal of 2664689706 is 6079864662.

It is an interprime number because it is at equal distance from previous prime (2664689693) and next prime (2664689719).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15780 + ... + 74688.

It is an arithmetic number, because the mean of its divisors is an integer number (137849400).

Almost surely, 2^2664689706 is an apocalyptic number.

2664689706 is an abundant number, since it is smaller than the sum of its proper divisors (3952081494).

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

2664689706 is a wasteful number, since it uses less digits than its factorization.

2664689706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59283 (or 59280 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The square root of 2664689706 is about 51620.6325610216. The cubic root of 2664689706 is about 1386.3797769897.

The spelling of 2664689706 in words is "two billion, six hundred sixty-four million, six hundred eighty-nine thousand, seven hundred six".