82509069715 has 16 divisors (see below), whose sum is σ = 102443644800. Its totient is φ = 63719574912.

The previous prime is 82509069703. The next prime is 82509069743. The reversal of 82509069715 is 51796090528.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82509069715 is a prime.

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, 797929 + ... + 895381.

It is an arithmetic number, because the mean of its divisors is an integer number (6402727800).

Almost surely, 2^82509069715 is an apocalyptic number.

82509069715 is a deficient number, since it is larger than the sum of its proper divisors (19934575085).

82509069715 is a wasteful number, since it uses less digits than its factorization.

82509069715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103326.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 82509069715 in words is "eighty-two billion, five hundred nine million, sixty-nine thousand, seven hundred fifteen".