41716261421 has 2 divisors, whose sum is σ = 41716261422. Its totient is φ = 41716261420.

The previous prime is 41716261409. The next prime is 41716261423. The reversal of 41716261421 is 12416261714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37299196900 + 4417064521 = 193130^2 + 66461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41716261421 is a prime.

It is a super-4 number, since 4×41716261421⁴ (a number of 44 digits) contains 4444 as substring.

It is a Sophie Germain prime.

Together with 41716261423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41716261423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20858130710 + 20858130711.

It is an arithmetic number, because the mean of its divisors is an integer number (20858130711).

Almost surely, 2^41716261421 is an apocalyptic number.

It is an amenable number.

41716261421 is a deficient number, since it is larger than the sum of its proper divisors (1).

41716261421 is an equidigital number, since it uses as much as digits as its factorization.

41716261421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The spelling of 41716261421 in words is "forty-one billion, seven hundred sixteen million, two hundred sixty-one thousand, four hundred twenty-one".