82643600484 has 45 divisors (see below), whose sum is σ = 216060224611. Its totient is φ = 27546141960.

The previous prime is 82643600443. The next prime is 82643600489. The reversal of 82643600484 is 48400634628.

The square root of 82643600484 is 287478.

It is a perfect power (a square), and thus also a powerful number.

82643600484 is a `hidden beast` number, since 82 + 64 + 36 + 0 + 0 + 484 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82643600489) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5166619 + ... + 5182589.

Almost surely, 2^82643600484 is an apocalyptic number.

82643600484 is the 287478-th square number.

It is an amenable number.

82643600484 is an abundant number, since it is smaller than the sum of its proper divisors (133416624127).

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

82643600484 is an frugal number, since it uses more digits than its factorization.

82643600484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31958 (or 15976 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 82643600484 in words is "eighty-two billion, six hundred forty-three million, six hundred thousand, four hundred eighty-four".