10811869451 has 2 divisors, whose sum is σ = 10811869452. Its totient is φ = 10811869450.

The previous prime is 10811869447. The next prime is 10811869477. The reversal of 10811869451 is 15496811801.

It is a weak prime.

It is an emirp because it is prime and its reverse (15496811801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10811869451 - 2² = 10811869447 is a prime.

It is not a weakly prime, because it can be changed into another prime (10811869441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5405934725 + 5405934726.

It is an arithmetic number, because the mean of its divisors is an integer number (5405934726).

Almost surely, 2^10811869451 is an apocalyptic number.

10811869451 is a deficient number, since it is larger than the sum of its proper divisors (1).

10811869451 is an equidigital number, since it uses as much as digits as its factorization.

10811869451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 44.

The spelling of 10811869451 in words is "ten billion, eight hundred eleven million, eight hundred sixty-nine thousand, four hundred fifty-one".