2112887668 has 6 divisors (see below), whose sum is σ = 3697553426. Its totient is φ = 1056443832.

The previous prime is 2112887641. The next prime is 2112887671. The reversal of 2112887668 is 8667882112.

It can be written as a sum of positive squares in only one way, i.e., 1550154384 + 562733284 = 39372^2 + 23722^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264110955 + ... + 264110962.

Almost surely, 2^2112887668 is an apocalyptic number.

It is an amenable number.

2112887668 is a deficient number, since it is larger than the sum of its proper divisors (1584665758).

2112887668 is a wasteful number, since it uses less digits than its factorization.

2112887668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528221921 (or 528221919 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The square root of 2112887668 is about 45966.1578555354. The cubic root of 2112887668 is about 1283.1934559114.

The spelling of 2112887668 in words is "two billion, one hundred twelve million, eight hundred eighty-seven thousand, six hundred sixty-eight".