82481385380 has 48 divisors (see below), whose sum is σ = 175343177520. Its totient is φ = 32587968000.

The previous prime is 82481385377. The next prime is 82481385401. The reversal of 82481385380 is 8358318428.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2473868644 + 80007516736 = 49738^2 + 282856^2 .

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, 801926 + ... + 898914.

It is an arithmetic number, because the mean of its divisors is an integer number (3652982865).

Almost surely, 2^82481385380 is an apocalyptic number.

It is an amenable number.

82481385380 is an abundant number, since it is smaller than the sum of its proper divisors (92861792140).

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

82481385380 is a wasteful number, since it uses less digits than its factorization.

82481385380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97520 (or 97518 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 82481385380 in words is "eighty-two billion, four hundred eighty-one million, three hundred eighty-five thousand, three hundred eighty".