82543575630 has 64 divisors (see below), whose sum is σ = 202516070400. Its totient is φ = 21522365184.

The previous prime is 82543575589. The next prime is 82543575671. The reversal of 82543575630 is 3657534528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82543575589) and next prime (82543575671).

It is a self number, because there is not a number n which added to its sum of digits gives 82543575630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1451187 + ... + 1506993.

It is an arithmetic number, because the mean of its divisors is an integer number (3164313600).

Almost surely, 2^82543575630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82543575630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101258035200).

82543575630 is an abundant number, since it is smaller than the sum of its proper divisors (119972494770).

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

82543575630 is a wasteful number, since it uses less digits than its factorization.

82543575630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56913.

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 82543575630 in words is "eighty-two billion, five hundred forty-three million, five hundred seventy-five thousand, six hundred thirty".