36261427685437 has 2 divisors, whose sum is σ = 36261427685438. Its totient is φ = 36261427685436.

The previous prime is 36261427685429. The next prime is 36261427685477. The reversal of 36261427685437 is 73458672416263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20020156923321 + 16241270762116 = 4474389^2 + 4030046^2 .

It is a cyclic number.

It is not a de Polignac number, because 36261427685437 - 2³ = 36261427685429 is a prime.

It is a super-2 number, since 2×36261427685437² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36261427685477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18130713842718 + 18130713842719.

It is an arithmetic number, because the mean of its divisors is an integer number (18130713842719).

Almost surely, 2^{36261427685437} is an apocalyptic number.

It is an amenable number.

36261427685437 is a deficient number, since it is larger than the sum of its proper divisors (1).

36261427685437 is an equidigital number, since it uses as much as digits as its factorization.

36261427685437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243855360, while the sum is 64.

The spelling of 36261427685437 in words is "thirty-six trillion, two hundred sixty-one billion, four hundred twenty-seven million, six hundred eighty-five thousand, four hundred thirty-seven".