82612512617 has 8 divisors (see below), whose sum is σ = 83400921000. Its totient is φ = 81826791424.

The previous prime is 82612512613. The next prime is 82612512637. The reversal of 82612512617 is 71621521628.

It can be written as a sum of positive squares in 4 ways, for example, as 12855251161 + 69757261456 = 113381^2 + 264116^2 .

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 82612512617 - 2² = 82612512613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82612512613) 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, 609992 + ... + 733017.

It is an arithmetic number, because the mean of its divisors is an integer number (10425115125).

Almost surely, 2^82612512617 is an apocalyptic number.

It is an amenable number.

82612512617 is a deficient number, since it is larger than the sum of its proper divisors (788408383).

82612512617 is a wasteful number, since it uses less digits than its factorization.

82612512617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343595.

The product of its digits is 80640, while the sum is 41.

The spelling of 82612512617 in words is "eighty-two billion, six hundred twelve million, five hundred twelve thousand, six hundred seventeen".