13855740461 has 2 divisors, whose sum is σ = 13855740462. Its totient is φ = 13855740460.

The previous prime is 13855740419. The next prime is 13855740487. The reversal of 13855740461 is 16404755831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7175784100 + 6679956361 = 84710^2 + 81731^2 .

It is a cyclic number.

It is not a de Polignac number, because 13855740461 - 2⁶ = 13855740397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13855740161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927870230 + 6927870231.

It is an arithmetic number, because the mean of its divisors is an integer number (6927870231).

Almost surely, 2^13855740461 is an apocalyptic number.

It is an amenable number.

13855740461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855740461 is an equidigital number, since it uses as much as digits as its factorization.

13855740461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 13855740461 in words is "thirteen billion, eight hundred fifty-five million, seven hundred forty thousand, four hundred sixty-one".