1117278849 has 16 divisors (see below), whose sum is σ = 1521509184. Its totient is φ = 729019200.

The previous prime is 1117278821. The next prime is 1117278871. The reversal of 1117278849 is 9488727111.

It is not a de Polignac number, because 1117278849 - 2¹¹ = 1117276801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1117278798 and 1117278807.

It is not an unprimeable number, because it can be changed into a prime (1117278049) 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, 58594 + ... + 75284.

It is an arithmetic number, because the mean of its divisors is an integer number (95094324).

Almost surely, 2^1117278849 is an apocalyptic number.

It is an amenable number.

1117278849 is a deficient number, since it is larger than the sum of its proper divisors (404230335).

1117278849 is a wasteful number, since it uses less digits than its factorization.

1117278849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17168.

The product of its digits is 225792, while the sum is 48.

The square root of 1117278849 is about 33425.7213684312. The cubic root of 1117278849 is about 1037.6570930462.

The spelling of 1117278849 in words is "one billion, one hundred seventeen million, two hundred seventy-eight thousand, eight hundred forty-nine".