82510778304 has 84 divisors (see below), whose sum is σ = 245261636984. Its totient is φ = 27503587584.

The previous prime is 82510778297. The next prime is 82510778321. The reversal of 82510778304 is 40387701528.

It is a self number, because there is not a number n which added to its sum of digits gives 82510778304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2637187 + ... + 2668290.

Almost surely, 2^82510778304 is an apocalyptic number.

It is an amenable number.

82510778304 is an abundant number, since it is smaller than the sum of its proper divisors (162750858680).

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

82510778304 is an equidigital number, since it uses as much as digits as its factorization.

82510778304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305504 (or 5305482 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 82510778304 in words is "eighty-two billion, five hundred ten million, seven hundred seventy-eight thousand, three hundred four".