82644420430 has 32 divisors (see below), whose sum is σ = 174766945248. Its totient is φ = 27740784000.

The previous prime is 82644420421. The next prime is 82644420461. The reversal of 82644420430 is 3402444628.

It is a self number, because there is not a number n which added to its sum of digits gives 82644420430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28895221 + ... + 28898080.

It is an arithmetic number, because the mean of its divisors is an integer number (5461467039).

Almost surely, 2^82644420430 is an apocalyptic number.

82644420430 is an abundant number, since it is smaller than the sum of its proper divisors (92122524818).

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

82644420430 is a wasteful number, since it uses less digits than its factorization.

82644420430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57793332.

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 82644420430 in words is "eighty-two billion, six hundred forty-four million, four hundred twenty thousand, four hundred thirty".