10543910491 has 2 divisors, whose sum is σ = 10543910492. Its totient is φ = 10543910490.

The previous prime is 10543910477. The next prime is 10543910513. The reversal of 10543910491 is 19401934501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10543910491 - 2¹¹ = 10543908443 is a prime.

It is a super-2 number, since 2×10543910491² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10543910491.

It is not a weakly prime, because it can be changed into another prime (10543911491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5271955245 + 5271955246.

It is an arithmetic number, because the mean of its divisors is an integer number (5271955246).

Almost surely, 2^10543910491 is an apocalyptic number.

10543910491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10543910491 is an equidigital number, since it uses as much as digits as its factorization.

10543910491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 10543910491 in words is "ten billion, five hundred forty-three million, nine hundred ten thousand, four hundred ninety-one".