82567302440 has 64 divisors (see below), whose sum is σ = 219637180800. Its totient is φ = 27332621568.

The previous prime is 82567302413. The next prime is 82567302451. The reversal of 82567302440 is 4420376528.

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, 5076074 + ... + 5092313.

It is an arithmetic number, because the mean of its divisors is an integer number (3431830950).

Almost surely, 2^82567302440 is an apocalyptic number.

It is an amenable number.

82567302440 is an abundant number, since it is smaller than the sum of its proper divisors (137069878360).

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

82567302440 is a wasteful number, since it uses less digits than its factorization.

82567302440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168434 (or 10168430 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

Adding to 82567302440 its reverse (4420376528), we get a palindrome (86987678968).

The spelling of 82567302440 in words is "eighty-two billion, five hundred sixty-seven million, three hundred two thousand, four hundred forty".