2913894666 has 12 divisors (see below), whose sum is σ = 6313438482. Its totient is φ = 971298216.

The previous prime is 2913894661. The next prime is 2913894689. The reversal of 2913894666 is 6664983192.

It can be written as a sum of positive squares in only one way, i.e., 1826280225 + 1087614441 = 42735^2 + 32979^2 .

It is not an unprimeable number, because it can be changed into a prime (2913894661) 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, 80941501 + ... + 80941536.

Almost surely, 2^2913894666 is an apocalyptic number.

2913894666 is an abundant number, since it is smaller than the sum of its proper divisors (3399543816).

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

2913894666 is a wasteful number, since it uses less digits than its factorization.

2913894666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161883045 (or 161883042 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 2913894666 is about 53980.5026467891. The cubic root of 2913894666 is about 1428.3170358627.

The spelling of 2913894666 in words is "two billion, nine hundred thirteen million, eight hundred ninety-four thousand, six hundred sixty-six".