36184720729 has 2 divisors, whose sum is σ = 36184720730. Its totient is φ = 36184720728.

The previous prime is 36184720697. The next prime is 36184720763. The reversal of 36184720729 is 92702748163.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21389647504 + 14795073225 = 146252^2 + 121635^2 .

It is a cyclic number.

It is not a de Polignac number, because 36184720729 - 2⁵ = 36184720697 is a prime.

It is not a weakly prime, because it can be changed into another prime (36184720129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18092360364 + 18092360365.

It is an arithmetic number, because the mean of its divisors is an integer number (18092360365).

Almost surely, 2^36184720729 is an apocalyptic number.

It is an amenable number.

36184720729 is a deficient number, since it is larger than the sum of its proper divisors (1).

36184720729 is an equidigital number, since it uses as much as digits as its factorization.

36184720729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 36184720729 in words is "thirty-six billion, one hundred eighty-four million, seven hundred twenty thousand, seven hundred twenty-nine".