2279229861 has 16 divisors (see below), whose sum is σ = 3114889344. Its totient is φ = 1481872704.

The previous prime is 2279229853. The next prime is 2279229863. The reversal of 2279229861 is 1689229722.

2279229861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2279229861 - 2³ = 2279229853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2279229861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279229863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16366 + ... + 69471.

It is an arithmetic number, because the mean of its divisors is an integer number (194680584).

Almost surely, 2^2279229861 is an apocalyptic number.

It is an amenable number.

2279229861 is a deficient number, since it is larger than the sum of its proper divisors (835659483).

2279229861 is a wasteful number, since it uses less digits than its factorization.

2279229861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86060.

The product of its digits is 435456, while the sum is 48.

The square root of 2279229861 is about 47741.2804708881. The cubic root of 2279229861 is about 1316.0206644036.

The spelling of 2279229861 in words is "two billion, two hundred seventy-nine million, two hundred twenty-nine thousand, eight hundred sixty-one".