32139093159581 has 2 divisors, whose sum is σ = 32139093159582. Its totient is φ = 32139093159580.

The previous prime is 32139093159571. The next prime is 32139093159617. The reversal of 32139093159581 is 18595139093123.

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., 30023101083556 + 2115992076025 = 5479334^2 + 1454645^2 .

It is a cyclic number.

It is not a de Polignac number, because 32139093159581 - 2²⁶ = 32139026050717 is a prime.

It is a super-2 number, since 2×32139093159581² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32139093159581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32139093159571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16069546579790 + 16069546579791.

It is an arithmetic number, because the mean of its divisors is an integer number (16069546579791).

Almost surely, 2^{32139093159581} is an apocalyptic number.

It is an amenable number.

32139093159581 is a deficient number, since it is larger than the sum of its proper divisors (1).

32139093159581 is an equidigital number, since it uses as much as digits as its factorization.

32139093159581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7873200, while the sum is 59.

The spelling of 32139093159581 in words is "thirty-two trillion, one hundred thirty-nine billion, ninety-three million, one hundred fifty-nine thousand, five hundred eighty-one".