82888681609 has 4 divisors (see below), whose sum is σ = 85562510080. Its totient is φ = 80214853140.

The previous prime is 82888681573. The next prime is 82888681619. The reversal of 82888681609 is 90618688828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82888681609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82888681619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336914189 + ... + 1336914250.

It is an arithmetic number, because the mean of its divisors is an integer number (21390627520).

Almost surely, 2^82888681609 is an apocalyptic number.

It is an amenable number.

82888681609 is a deficient number, since it is larger than the sum of its proper divisors (2673828471).

82888681609 is a wasteful number, since it uses less digits than its factorization.

82888681609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673828470.

The product of its (nonzero) digits is 21233664, while the sum is 64.

The spelling of 82888681609 in words is "eighty-two billion, eight hundred eighty-eight million, six hundred eighty-one thousand, six hundred nine".