36408804281 has 2 divisors, whose sum is σ = 36408804282. Its totient is φ = 36408804280.

The previous prime is 36408804251. The next prime is 36408804323. The reversal of 36408804281 is 18240880463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29371104400 + 7037699881 = 171380^2 + 83891^2 .

It is a cyclic number.

It is not a de Polignac number, because 36408804281 - 2²² = 36404609977 is a prime.

It is a super-2 number, since 2×36408804281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36408804221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18204402140 + 18204402141.

It is an arithmetic number, because the mean of its divisors is an integer number (18204402141).

Almost surely, 2^36408804281 is an apocalyptic number.

It is an amenable number.

36408804281 is a deficient number, since it is larger than the sum of its proper divisors (1).

36408804281 is an equidigital number, since it uses as much as digits as its factorization.

36408804281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 36408804281 in words is "thirty-six billion, four hundred eight million, eight hundred four thousand, two hundred eighty-one".