82583055781 has 8 divisors (see below), whose sum is σ = 82689493824. Its totient is φ = 82476683520.

The previous prime is 82583055769. The next prime is 82583055803. The reversal of 82583055781 is 18755038528.

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 82583055781 - 2⁵ = 82583055749 is a prime.

It is a super-2 number, since 2×82583055781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82583955781) 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, 2797806 + ... + 2827168.

It is an arithmetic number, because the mean of its divisors is an integer number (10336186728).

Almost surely, 2^82583055781 is an apocalyptic number.

It is an amenable number.

82583055781 is a deficient number, since it is larger than the sum of its proper divisors (106438043).

82583055781 is a wasteful number, since it uses less digits than its factorization.

82583055781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32891.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The spelling of 82583055781 in words is "eighty-two billion, five hundred eighty-three million, fifty-five thousand, seven hundred eighty-one".