2279789139 has 8 divisors (see below), whose sum is σ = 3039947712. Its totient is φ = 1519745000.

The previous prime is 2279789123. The next prime is 2279789167. The reversal of 2279789139 is 9319879722.

2279789139 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2279789139 - 2⁴ = 2279789123 is a prime.

It is a super-2 number, since 2×2279789139² = 10394877036604722642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2279782139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44764 + ... + 81014.

It is an arithmetic number, because the mean of its divisors is an integer number (379993464).

Almost surely, 2^2279789139 is an apocalyptic number.

2279789139 is a deficient number, since it is larger than the sum of its proper divisors (760158573).

2279789139 is a wasteful number, since it uses less digits than its factorization.

2279789139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57217.

The product of its digits is 3429216, while the sum is 57.

The square root of 2279789139 is about 47747.1374953515. The cubic root of 2279789139 is about 1316.1282974283.

The spelling of 2279789139 in words is "two billion, two hundred seventy-nine million, seven hundred eighty-nine thousand, one hundred thirty-nine".