32495646409 has 4 divisors (see below), whose sum is σ = 32496137604. Its totient is φ = 32495155216.

The previous prime is 32495646397. The next prime is 32495646413. The reversal of 32495646409 is 90464659423.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90464659423 = 313 ⋅289024471.

It can be written as a sum of positive squares in 2 ways, for example, as 16161528384 + 16334118025 = 127128^2 + 127805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32495646409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32495640409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127402 + ... + 284995.

It is an arithmetic number, because the mean of its divisors is an integer number (8124034401).

Almost surely, 2^32495646409 is an apocalyptic number.

It is an amenable number.

32495646409 is a deficient number, since it is larger than the sum of its proper divisors (491195).

32495646409 is an equidigital number, since it uses as much as digits as its factorization.

32495646409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491194.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 32495646409 in words is "thirty-two billion, four hundred ninety-five million, six hundred forty-six thousand, four hundred nine".