82939690395239 has 8 divisors (see below), whose sum is σ = 88278278416128. Its totient is φ = 77652189341440.

The previous prime is 82939690395229. The next prime is 82939690395251. The reversal of 82939690395239 is 93259309693928.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82939690395239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82939690395239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82939690395209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12771738422 + ... + 12771744915.

It is an arithmetic number, because the mean of its divisors is an integer number (11034784802016).

Almost surely, 2^{82939690395239} is an apocalyptic number.

82939690395239 is a deficient number, since it is larger than the sum of its proper divisors (5338588020889).

82939690395239 is a wasteful number, since it uses less digits than its factorization.

82939690395239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25543483545.

The product of its (nonzero) digits is 1530550080, while the sum is 77.

The spelling of 82939690395239 in words is "eighty-two trillion, nine hundred thirty-nine billion, six hundred ninety million, three hundred ninety-five thousand, two hundred thirty-nine".