82780300327575 has 48 divisors (see below), whose sum is σ = 136950487464960. Its totient is φ = 44121417217920.

The previous prime is 82780300327567. The next prime is 82780300327579. The reversal of 82780300327575 is 57572300308728.

It is not a de Polignac number, because 82780300327575 - 2³ = 82780300327567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82780300327579) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1089219477 + ... + 1089295473.

It is an arithmetic number, because the mean of its divisors is an integer number (2853135155520).

Almost surely, 2^{82780300327575} is an apocalyptic number.

82780300327575 is a deficient number, since it is larger than the sum of its proper divisors (54170187137385).

82780300327575 is a wasteful number, since it uses less digits than its factorization.

82780300327575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85056 (or 85051 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 82780300327575 in words is "eighty-two trillion, seven hundred eighty billion, three hundred million, three hundred twenty-seven thousand, five hundred seventy-five".