13773995461 has 2 divisors, whose sum is σ = 13773995462. Its totient is φ = 13773995460.

The previous prime is 13773995453. The next prime is 13773995507. The reversal of 13773995461 is 16459937731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13649248900 + 124746561 = 116830^2 + 11169^2 .

It is an emirp because it is prime and its reverse (16459937731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13773995461 - 2³ = 13773995453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13773995861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6886997730 + 6886997731.

It is an arithmetic number, because the mean of its divisors is an integer number (6886997731).

Almost surely, 2^13773995461 is an apocalyptic number.

It is an amenable number.

13773995461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13773995461 is an equidigital number, since it uses as much as digits as its factorization.

13773995461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 55.

The spelling of 13773995461 in words is "thirteen billion, seven hundred seventy-three million, nine hundred ninety-five thousand, four hundred sixty-one".