82671543456745 has 8 divisors (see below), whose sum is σ = 100320524644680. Its totient is φ = 65394119767680.

The previous prime is 82671543456701. The next prime is 82671543456779. The reversal of 82671543456745 is 54765434517628.

It can be written as a sum of positive squares in 4 ways, for example, as 9144074022889 + 73527469433856 = 3023917^2 + 8574816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82671543456745 - 2²³ = 82671535068137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92889374226 + ... + 92889375115.

It is an arithmetic number, because the mean of its divisors is an integer number (12540065580585).

Almost surely, 2^{82671543456745} is an apocalyptic number.

It is an amenable number.

82671543456745 is a deficient number, since it is larger than the sum of its proper divisors (17648981187935).

82671543456745 is a wasteful number, since it uses less digits than its factorization.

82671543456745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185778749435.

The product of its digits is 677376000, while the sum is 67.

The spelling of 82671543456745 in words is "eighty-two trillion, six hundred seventy-one billion, five hundred forty-three million, four hundred fifty-six thousand, seven hundred forty-five".