82605030866507 has 4 divisors (see below), whose sum is σ = 82622685291120. Its totient is φ = 82587376441896.

The previous prime is 82605030866471. The next prime is 82605030866509. The reversal of 82605030866507 is 70566803050628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82605030866507 - 2³⁶ = 82536311389771 is a prime.

It is a super-2 number, since 2×82605030866507² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82605030866509) 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, 8827205288 + ... + 8827214645.

It is an arithmetic number, because the mean of its divisors is an integer number (20655671322780).

Almost surely, 2^{82605030866507} is an apocalyptic number.

82605030866507 is a deficient number, since it is larger than the sum of its proper divisors (17654424613).

82605030866507 is a wasteful number, since it uses less digits than its factorization.

82605030866507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654424612.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 82605030866507 in words is "eighty-two trillion, six hundred five billion, thirty million, eight hundred sixty-six thousand, five hundred seven".