13465311481 has 2 divisors, whose sum is σ = 13465311482. Its totient is φ = 13465311480.

The previous prime is 13465311463. The next prime is 13465311511. The reversal of 13465311481 is 18411356431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7143630400 + 6321681081 = 84520^2 + 79509^2 .

It is a cyclic number.

It is not a de Polignac number, because 13465311481 - 2⁵ = 13465311449 is a prime.

It is a super-2 number, since 2×13465311481² (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 13465311481.

It is not a weakly prime, because it can be changed into another prime (13465311401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6732655740 + 6732655741.

It is an arithmetic number, because the mean of its divisors is an integer number (6732655741).

Almost surely, 2^13465311481 is an apocalyptic number.

It is an amenable number.

13465311481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13465311481 is an equidigital number, since it uses as much as digits as its factorization.

13465311481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The spelling of 13465311481 in words is "thirteen billion, four hundred sixty-five million, three hundred eleven thousand, four hundred eighty-one".