4201846158509 has 2 divisors, whose sum is σ = 4201846158510. Its totient is φ = 4201846158508.

The previous prime is 4201846158473. The next prime is 4201846158511. The reversal of 4201846158509 is 9058516481024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4106284801609 + 95561356900 = 2026397^2 + 309130^2 .

It is a cyclic number.

It is not a de Polignac number, because 4201846158509 - 2⁸ = 4201846158253 is a prime.

It is a super-2 number, since 2×4201846158509² (a number of 26 digits) contains 22 as substring.

Together with 4201846158511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4201846158529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100923079254 + 2100923079255.

It is an arithmetic number, because the mean of its divisors is an integer number (2100923079255).

Almost surely, 2^{4201846158509} is an apocalyptic number.

It is an amenable number.

4201846158509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4201846158509 is an equidigital number, since it uses as much as digits as its factorization.

4201846158509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 4201846158509 in words is "four trillion, two hundred one billion, eight hundred forty-six million, one hundred fifty-eight thousand, five hundred nine".