10915457549 has 2 divisors, whose sum is σ = 10915457550. Its totient is φ = 10915457548.

The previous prime is 10915457543. The next prime is 10915457551. The reversal of 10915457549 is 94575451901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7330441924 + 3585015625 = 85618^2 + 59875^2 .

It is a cyclic number.

It is not a de Polignac number, because 10915457549 - 2²⁸ = 10647022093 is a prime.

Together with 10915457551, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10915457497 and 10915457506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10915457543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457728774 + 5457728775.

It is an arithmetic number, because the mean of its divisors is an integer number (5457728775).

Almost surely, 2^10915457549 is an apocalyptic number.

It is an amenable number.

10915457549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915457549 is an equidigital number, since it uses as much as digits as its factorization.

10915457549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 50.

The spelling of 10915457549 in words is "ten billion, nine hundred fifteen million, four hundred fifty-seven thousand, five hundred forty-nine".