2666749092 has 48 divisors (see below), whose sum is σ = 7176597120. Its totient is φ = 754935552.

The previous prime is 2666749073. The next prime is 2666749147. The reversal of 2666749092 is 2909476662.

It is a super-2 number, since 2×2666749092² = 14223101439365648928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136473 + ... + 154784.

It is an arithmetic number, because the mean of its divisors is an integer number (149512440).

Almost surely, 2^2666749092 is an apocalyptic number.

It is an amenable number.

2666749092 is an abundant number, since it is smaller than the sum of its proper divisors (4509848028).

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

2666749092 is a wasteful number, since it uses less digits than its factorization.

2666749092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291380 (or 291378 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The square root of 2666749092 is about 51640.5760231235. The cubic root of 2666749092 is about 1386.7368361876.

The spelling of 2666749092 in words is "two billion, six hundred sixty-six million, seven hundred forty-nine thousand, ninety-two".