1636731351113 has 2 divisors, whose sum is σ = 1636731351114. Its totient is φ = 1636731351112.

The previous prime is 1636731351083. The next prime is 1636731351187. The reversal of 1636731351113 is 3111531376361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200508088329 + 436223262784 = 1095677^2 + 660472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1636731351113 - 2¹⁶ = 1636731285577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1636731351193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 818365675556 + 818365675557.

It is an arithmetic number, because the mean of its divisors is an integer number (818365675557).

Almost surely, 2^{1636731351113} is an apocalyptic number.

It is an amenable number.

1636731351113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1636731351113 is an equidigital number, since it uses as much as digits as its factorization.

1636731351113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 41.

The spelling of 1636731351113 in words is "one trillion, six hundred thirty-six billion, seven hundred thirty-one million, three hundred fifty-one thousand, one hundred thirteen".