505201140201851 has 2 divisors, whose sum is σ = 505201140201852. Its totient is φ = 505201140201850.

The previous prime is 505201140201841. The next prime is 505201140201881. The reversal of 505201140201851 is 158102041102505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505201140201851 - 2²⁶ = 505201073092987 is a prime.

It is a super-2 number, since 2×505201140201851² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505201140201841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252600570100925 + 252600570100926.

It is an arithmetic number, because the mean of its divisors is an integer number (252600570100926).

Almost surely, 2^{505201140201851} is an apocalyptic number.

505201140201851 is a deficient number, since it is larger than the sum of its proper divisors (1).

505201140201851 is an equidigital number, since it uses as much as digits as its factorization.

505201140201851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16000, while the sum is 35.

The spelling of 505201140201851 in words is "five hundred five trillion, two hundred one billion, one hundred forty million, two hundred one thousand, eight hundred fifty-one".