36228569381 has 2 divisors, whose sum is σ = 36228569382. Its totient is φ = 36228569380.

The previous prime is 36228569359. The next prime is 36228569441. The reversal of 36228569381 is 18396582263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23289506881 + 12939062500 = 152609^2 + 113750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36228569381 is a prime.

It is a super-2 number, since 2×36228569381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36228509381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18114284690 + 18114284691.

It is an arithmetic number, because the mean of its divisors is an integer number (18114284691).

Almost surely, 2^36228569381 is an apocalyptic number.

It is an amenable number.

36228569381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36228569381 is an equidigital number, since it uses as much as digits as its factorization.

36228569381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 53.

The spelling of 36228569381 in words is "thirty-six billion, two hundred twenty-eight million, five hundred sixty-nine thousand, three hundred eighty-one".