32158099409 has 2 divisors, whose sum is σ = 32158099410. Its totient is φ = 32158099408.

The previous prime is 32158099399. The next prime is 32158099471. The reversal of 32158099409 is 90499085123.

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., 31570182400 + 587917009 = 177680^2 + 24247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32158099409 is a prime.

It is a super-2 number, since 2×32158099409² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32158099489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16079049704 + 16079049705.

It is an arithmetic number, because the mean of its divisors is an integer number (16079049705).

Almost surely, 2^32158099409 is an apocalyptic number.

It is an amenable number.

32158099409 is a deficient number, since it is larger than the sum of its proper divisors (1).

32158099409 is an equidigital number, since it uses as much as digits as its factorization.

32158099409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 32158099409 in words is "thirty-two billion, one hundred fifty-eight million, ninety-nine thousand, four hundred nine".