82517145424 has 50 divisors (see below), whose sum is σ = 186512119690. Its totient is φ = 35364474432.

The previous prime is 82517145421. The next prime is 82517145433. The reversal of 82517145424 is 42454171528.

It can be written as a sum of positive squares in only one way, i.e., 82449379600 + 67765824 = 287140^2 + 8232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82517145421) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1035579 + ... + 1112410.

Almost surely, 2^82517145424 is an apocalyptic number.

It is an amenable number.

82517145424 is an abundant number, since it is smaller than the sum of its proper divisors (103994974266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82517145424 is an equidigital number, since it uses as much as digits as its factorization.

82517145424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148025 (or 2147998 counting only the distinct ones).

The product of its digits is 358400, while the sum is 43.

The spelling of 82517145424 in words is "eighty-two billion, five hundred seventeen million, one hundred forty-five thousand, four hundred twenty-four".