36312288281 has 2 divisors, whose sum is σ = 36312288282. Its totient is φ = 36312288280.

The previous prime is 36312288241. The next prime is 36312288343. The reversal of 36312288281 is 18288221363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24115294681 + 12196993600 = 155291^2 + 110440^2 .

It is a cyclic number.

It is not a de Polignac number, because 36312288281 - 2²² = 36308093977 is a prime.

It is a super-2 number, since 2×36312288281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36312288241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18156144140 + 18156144141.

It is an arithmetic number, because the mean of its divisors is an integer number (18156144141).

Almost surely, 2^36312288281 is an apocalyptic number.

It is an amenable number.

36312288281 is a deficient number, since it is larger than the sum of its proper divisors (1).

36312288281 is an equidigital number, since it uses as much as digits as its factorization.

36312288281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 44.

The spelling of 36312288281 in words is "thirty-six billion, three hundred twelve million, two hundred eighty-eight thousand, two hundred eighty-one".