9915406441 has 4 divisors (see below), whose sum is σ = 10013578884. Its totient is φ = 9817234000.

The previous prime is 9915406439. The next prime is 9915406477. The reversal of 9915406441 is 1446045199.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6677341225 + 3238065216 = 81715^2 + 56904^2 .

It is a cyclic number.

It is not a de Polignac number, because 9915406441 - 2¹ = 9915406439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9915406411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49086070 + ... + 49086271.

It is an arithmetic number, because the mean of its divisors is an integer number (2503394721).

Almost surely, 2^9915406441 is an apocalyptic number.

It is an amenable number.

9915406441 is a deficient number, since it is larger than the sum of its proper divisors (98172443).

9915406441 is a wasteful number, since it uses less digits than its factorization.

9915406441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98172442.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 9915406441 is about 99576.1338926151. The cubic root of 9915406441 is about 2148.3424354822.

The spelling of 9915406441 in words is "nine billion, nine hundred fifteen million, four hundred six thousand, four hundred forty-one".