82563910409 has 8 divisors (see below), whose sum is σ = 83036773728. Its totient is φ = 82092004960.

The previous prime is 82563910399. The next prime is 82563910427. The reversal of 82563910409 is 90401936528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82563910409 - 2²⁰ = 82562861833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82563910309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66227 + ... + 411720.

It is an arithmetic number, because the mean of its divisors is an integer number (10379596716).

Almost surely, 2^82563910409 is an apocalyptic number.

It is an amenable number.

82563910409 is a deficient number, since it is larger than the sum of its proper divisors (472863319).

82563910409 is a wasteful number, since it uses less digits than its factorization.

82563910409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478935.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 82563910409 in words is "eighty-two billion, five hundred sixty-three million, nine hundred ten thousand, four hundred nine".