82530057778075 has 12 divisors (see below), whose sum is σ = 105638473956928. Its totient is φ = 63894238279200.

The previous prime is 82530057778061. The next prime is 82530057778087. The reversal of 82530057778075 is 57087775003528.

It is a de Polignac number, because none of the positive numbers 2^k-82530057778075 is a prime.

It is a super-2 number, since 2×82530057778075² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82530057777998 and 82530057778016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53245197792 + ... + 53245199341.

Almost surely, 2^{82530057778075} is an apocalyptic number.

82530057778075 is a deficient number, since it is larger than the sum of its proper divisors (23108416178853).

82530057778075 is a wasteful number, since it uses less digits than its factorization.

82530057778075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106490397174 (or 106490397169 counting only the distinct ones).

The product of its (nonzero) digits is 115248000, while the sum is 64.

The spelling of 82530057778075 in words is "eighty-two trillion, five hundred thirty billion, fifty-seven million, seven hundred seventy-eight thousand, seventy-five".