2281978607 has 4 divisors (see below), whose sum is σ = 2284188720. Its totient is φ = 2279768496.

The previous prime is 2281978597. The next prime is 2281978609. The reversal of 2281978607 is 7068791822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2281978607 - 2⁸ = 2281978351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281978609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103507 + ... + 1105572.

It is an arithmetic number, because the mean of its divisors is an integer number (571047180).

Almost surely, 2^2281978607 is an apocalyptic number.

2281978607 is a deficient number, since it is larger than the sum of its proper divisors (2210113).

2281978607 is a wasteful number, since it uses less digits than its factorization.

2281978607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210112.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 2281978607 is about 47770.0597341054. The cubic root of 2281978607 is about 1316.5494911765.

The spelling of 2281978607 in words is "two billion, two hundred eighty-one million, nine hundred seventy-eight thousand, six hundred seven".