21741483461 has 2 divisors, whose sum is σ = 21741483462. Its totient is φ = 21741483460.

The previous prime is 21741483427. The next prime is 21741483473. The reversal of 21741483461 is 16438414712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17909130625 + 3832352836 = 133825^2 + 61906^2 .

It is a cyclic number.

It is not a de Polignac number, because 21741483461 - 2⁶ = 21741483397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21741483061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10870741730 + 10870741731.

It is an arithmetic number, because the mean of its divisors is an integer number (10870741731).

Almost surely, 2^21741483461 is an apocalyptic number.

It is an amenable number.

21741483461 is a deficient number, since it is larger than the sum of its proper divisors (1).

21741483461 is an equidigital number, since it uses as much as digits as its factorization.

21741483461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The spelling of 21741483461 in words is "twenty-one billion, seven hundred forty-one million, four hundred eighty-three thousand, four hundred sixty-one".