9118913049 has 27 divisors (see below), whose sum is σ = 13325394303. Its totient is φ = 6009183504.

The previous prime is 9118913009. The next prime is 9118913053. The reversal of 9118913049 is 9403198119.

The square root of 9118913049 is 95493.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8492912649 + 626000400 = 92157^2 + 25020^2 .

It is not a de Polignac number, because 9118913049 - 2¹³ = 9118904857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9118912995 and 9118913013.

It is not an unprimeable number, because it can be changed into a prime (9118913009) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39820467 + ... + 39820695.

Almost surely, 2^9118913049 is an apocalyptic number.

9118913049 is the 95493-rd square number.

9118913049 is the 47747-th centered octagonal number.

It is an amenable number.

9118913049 is a deficient number, since it is larger than the sum of its proper divisors (4206481254).

9118913049 is an equidigital number, since it uses as much as digits as its factorization.

9118913049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The cubic root of 9118913049 is about 2089.2048476597.

The spelling of 9118913049 in words is "nine billion, one hundred eighteen million, nine hundred thirteen thousand, forty-nine".