82781565058127 has 8 divisors (see below), whose sum is σ = 89170598803440. Its totient is φ = 76395562891200.

The previous prime is 82781565058123. The next prime is 82781565058139. The reversal of 82781565058127 is 72185056518728.

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 82781565058127 - 2² = 82781565058123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82781565058123) 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, 757837877 + ... + 757947102.

It is an arithmetic number, because the mean of its divisors is an integer number (11146324850430).

Almost surely, 2^{82781565058127} is an apocalyptic number.

82781565058127 is a deficient number, since it is larger than the sum of its proper divisors (6389033745313).

82781565058127 is a wasteful number, since it uses less digits than its factorization.

82781565058127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515789193.

The product of its (nonzero) digits is 75264000, while the sum is 65.

The spelling of 82781565058127 in words is "eighty-two trillion, seven hundred eighty-one billion, five hundred sixty-five million, fifty-eight thousand, one hundred twenty-seven".