2281668012 has 36 divisors (see below), whose sum is σ = 6211208640. Its totient is φ = 702051552.

The previous prime is 2281667981. The next prime is 2281668023. The reversal of 2281668012 is 2108661822.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2437212 + ... + 2438147.

Almost surely, 2^2281668012 is an apocalyptic number.

It is an amenable number.

2281668012 is an abundant number, since it is smaller than the sum of its proper divisors (3929540628).

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

2281668012 is a wasteful number, since it uses less digits than its factorization.

2281668012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875382 (or 4875377 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2281668012 is about 47766.8086855297. The cubic root of 2281668012 is about 1316.4897575983.

The spelling of 2281668012 in words is "two billion, two hundred eighty-one million, six hundred sixty-eight thousand, twelve".