88535131813 has 2 divisors, whose sum is σ = 88535131814. Its totient is φ = 88535131812.

The previous prime is 88535131787. The next prime is 88535131847. The reversal of 88535131813 is 31813153588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49298653089 + 39236478724 = 222033^2 + 198082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88535131813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88535131313) 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, 44267565906 + 44267565907.

It is an arithmetic number, because the mean of its divisors is an integer number (44267565907).

Almost surely, 2^88535131813 is an apocalyptic number.

It is an amenable number.

88535131813 is a deficient number, since it is larger than the sum of its proper divisors (1).

88535131813 is an equidigital number, since it uses as much as digits as its factorization.

88535131813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The spelling of 88535131813 in words is "eighty-eight billion, five hundred thirty-five million, one hundred thirty-one thousand, eight hundred thirteen".