41813601724621 has 2 divisors, whose sum is σ = 41813601724622. Its totient is φ = 41813601724620.

The previous prime is 41813601724507. The next prime is 41813601724627. The reversal of 41813601724621 is 12642710631814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40710282572521 + 1103319152100 = 6380461^2 + 1050390^2 .

It is a cyclic number.

It is not a de Polignac number, because 41813601724621 - 2⁹ = 41813601724109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41813601724627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20906800862310 + 20906800862311.

It is an arithmetic number, because the mean of its divisors is an integer number (20906800862311).

Almost surely, 2^{41813601724621} is an apocalyptic number.

It is an amenable number.

41813601724621 is a deficient number, since it is larger than the sum of its proper divisors (1).

41813601724621 is an equidigital number, since it uses as much as digits as its factorization.

41813601724621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 41813601724621 in words is "forty-one trillion, eight hundred thirteen billion, six hundred one million, seven hundred twenty-four thousand, six hundred twenty-one".