10491520049 has 2 divisors, whose sum is σ = 10491520050. Its totient is φ = 10491520048.

The previous prime is 10491519967. The next prime is 10491520079. The reversal of 10491520049 is 94002519401.

10491520049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10487193649 + 4326400 = 102407^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 10491520049 - 2¹⁶ = 10491454513 is a prime.

It is a super-2 number, since 2×10491520049² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10491520079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245760024 + 5245760025.

It is an arithmetic number, because the mean of its divisors is an integer number (5245760025).

Almost surely, 2^10491520049 is an apocalyptic number.

It is an amenable number.

10491520049 is a deficient number, since it is larger than the sum of its proper divisors (1).

10491520049 is an equidigital number, since it uses as much as digits as its factorization.

10491520049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 10491520049 in words is "ten billion, four hundred ninety-one million, five hundred twenty thousand, forty-nine".