13536460981 has 2 divisors, whose sum is σ = 13536460982. Its totient is φ = 13536460980.

The previous prime is 13536460969. The next prime is 13536461027. The reversal of 13536460981 is 18906463531.

It is an a-pointer prime, because the next prime (13536461027) can be obtained adding 13536460981 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7609770756 + 5926690225 = 87234^2 + 76985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13536460981 is a prime.

It is a super-2 number, since 2×13536460981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13536460901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6768230490 + 6768230491.

It is an arithmetic number, because the mean of its divisors is an integer number (6768230491).

Almost surely, 2^13536460981 is an apocalyptic number.

It is an amenable number.

13536460981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13536460981 is an equidigital number, since it uses as much as digits as its factorization.

13536460981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 13536460981 in words is "thirteen billion, five hundred thirty-six million, four hundred sixty thousand, nine hundred eighty-one".