82510785320 has 16 divisors (see below), whose sum is σ = 185649267060. Its totient is φ = 33004314112.

The previous prime is 82510785317. The next prime is 82510785361. The reversal of 82510785320 is 2358701528.

It can be written as a sum of positive squares in 2 ways, for example, as 81964254436 + 546530884 = 286294^2 + 23378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031384777 + ... + 1031384856.

Almost surely, 2^82510785320 is an apocalyptic number.

It is an amenable number.

82510785320 is an abundant number, since it is smaller than the sum of its proper divisors (103138481740).

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

82510785320 is a wasteful number, since it uses less digits than its factorization.

82510785320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062769644 (or 2062769640 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 82510785320 in words is "eighty-two billion, five hundred ten million, seven hundred eighty-five thousand, three hundred twenty".