82738510642647 has 8 divisors (see below), whose sum is σ = 122575571322480. Its totient is φ = 55159007095080.

The previous prime is 82738510642591. The next prime is 82738510642657. The reversal of 82738510642647 is 74624601583728.

82738510642647 is a `hidden beast` number, since 8 + 2 + 7 + 38 + 510 + 6 + 42 + 6 + 47 = 666.

It is not a de Polignac number, because 82738510642647 - 2⁸ = 82738510642391 is a prime.

It is a super-2 number, since 2×82738510642647² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82738510642657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532194641504 + ... + 1532194641557.

It is an arithmetic number, because the mean of its divisors is an integer number (15321946415310).

Almost surely, 2^{82738510642647} is an apocalyptic number.

82738510642647 is a deficient number, since it is larger than the sum of its proper divisors (39837060679833).

82738510642647 is a wasteful number, since it uses less digits than its factorization.

82738510642647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064389283070 (or 3064389283064 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 82738510642647 in words is "eighty-two trillion, seven hundred thirty-eight billion, five hundred ten million, six hundred forty-two thousand, six hundred forty-seven".