10511406481 has 2 divisors, whose sum is σ = 10511406482. Its totient is φ = 10511406480.

The previous prime is 10511406443. The next prime is 10511406559. The reversal of 10511406481 is 18460411501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9802782081 + 708624400 = 99009^2 + 26620^2 .

It is a cyclic number.

It is not a de Polignac number, because 10511406481 - 2⁹ = 10511405969 is a prime.

It is a super-2 number, since 2×10511406481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10511400481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255703240 + 5255703241.

It is an arithmetic number, because the mean of its divisors is an integer number (5255703241).

Almost surely, 2^10511406481 is an apocalyptic number.

It is an amenable number.

10511406481 is a deficient number, since it is larger than the sum of its proper divisors (1).

10511406481 is an equidigital number, since it uses as much as digits as its factorization.

10511406481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 31.

Adding to 10511406481 its reverse (18460411501), we get a palindrome (28971817982).

The spelling of 10511406481 in words is "ten billion, five hundred eleven million, four hundred six thousand, four hundred eighty-one".