82146559851 has 6 divisors (see below), whose sum is σ = 118656142020. Its totient is φ = 54764373228.

The previous prime is 82146559829. The next prime is 82146559853. The reversal of 82146559851 is 15895564128.

82146559851 is a `hidden beast` number, since 8 + 2 + 1 + 4 + 6 + 559 + 85 + 1 = 666.

It is not a de Polignac number, because 82146559851 - 2⁷ = 82146559723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82146559853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4563697761 + ... + 4563697778.

It is an arithmetic number, because the mean of its divisors is an integer number (19776023670).

Almost surely, 2^82146559851 is an apocalyptic number.

82146559851 is a deficient number, since it is larger than the sum of its proper divisors (36509582169).

82146559851 is a wasteful number, since it uses less digits than its factorization.

82146559851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9127395545 (or 9127395542 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 54.

The spelling of 82146559851 in words is "eighty-two billion, one hundred forty-six million, five hundred fifty-nine thousand, eight hundred fifty-one".