13463452381 has 2 divisors, whose sum is σ = 13463452382. Its totient is φ = 13463452380.

The previous prime is 13463452369. The next prime is 13463452403. The reversal of 13463452381 is 18325436431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11441511225 + 2021941156 = 106965^2 + 44966^2 .

It is a cyclic number.

It is not a de Polignac number, because 13463452381 - 2¹¹ = 13463450333 is a prime.

It is a super-2 number, since 2×13463452381² (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 (13463458381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6731726190 + 6731726191.

It is an arithmetic number, because the mean of its divisors is an integer number (6731726191).

Almost surely, 2^13463452381 is an apocalyptic number.

It is an amenable number.

13463452381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13463452381 is an equidigital number, since it uses as much as digits as its factorization.

13463452381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The spelling of 13463452381 in words is "thirteen billion, four hundred sixty-three million, four hundred fifty-two thousand, three hundred eighty-one".