83631135529 has 2 divisors, whose sum is σ = 83631135530. Its totient is φ = 83631135528.

The previous prime is 83631135517. The next prime is 83631135563. The reversal of 83631135529 is 92553113638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79842979225 + 3788156304 = 282565^2 + 61548^2 .

It is a cyclic number.

It is not a de Polignac number, because 83631135529 - 2¹⁹ = 83630611241 is a prime.

It is a super-2 number, since 2×83631135529² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83631135229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41815567764 + 41815567765.

It is an arithmetic number, because the mean of its divisors is an integer number (41815567765).

Almost surely, 2^83631135529 is an apocalyptic number.

It is an amenable number.

83631135529 is a deficient number, since it is larger than the sum of its proper divisors (1).

83631135529 is an equidigital number, since it uses as much as digits as its factorization.

83631135529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 46.

The spelling of 83631135529 in words is "eighty-three billion, six hundred thirty-one million, one hundred thirty-five thousand, five hundred twenty-nine".