82509799124445 has 64 divisors (see below), whose sum is σ = 165065302296576. Its totient is φ = 34190968654080.

The previous prime is 82509799124437. The next prime is 82509799124453. The reversal of 82509799124445 is 54442199790528.

It is an interprime number because it is at equal distance from previous prime (82509799124437) and next prime (82509799124453).

It is not a de Polignac number, because 82509799124445 - 2³ = 82509799124437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82509799124445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102534454 + ... + 103336023.

It is an arithmetic number, because the mean of its divisors is an integer number (2579145348384).

Almost surely, 2^{82509799124445} is an apocalyptic number.

It is an amenable number.

82509799124445 is an abundant number, since it is smaller than the sum of its proper divisors (82555503172131).

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

82509799124445 is a wasteful number, since it uses less digits than its factorization.

82509799124445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205870850.

The product of its (nonzero) digits is 261273600, while the sum is 69.

The spelling of 82509799124445 in words is "eighty-two trillion, five hundred nine billion, seven hundred ninety-nine million, one hundred twenty-four thousand, four hundred forty-five".