2278648539 has 6 divisors (see below), whose sum is σ = 3291381236. Its totient is φ = 1519099020.

The previous prime is 2278648529. The next prime is 2278648573. The reversal of 2278648539 is 9358468722.

2278648539 is a `hidden beast` number, since 2 + 27 + 86 + 4 + 8 + 539 = 666.

It is not a de Polignac number, because 2278648539 - 2¹² = 2278644443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278648529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126591577 + ... + 126591594.

Almost surely, 2^2278648539 is an apocalyptic number.

2278648539 is a deficient number, since it is larger than the sum of its proper divisors (1012732697).

2278648539 is a wasteful number, since it uses less digits than its factorization.

2278648539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253183177 (or 253183174 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 2278648539 is about 47735.1918295088. The cubic root of 2278648539 is about 1315.9087703485.

The spelling of 2278648539 in words is "two billion, two hundred seventy-eight million, six hundred forty-eight thousand, five hundred thirty-nine".