82707128156503 has 8 divisors (see below), whose sum is σ = 86303575411200. Its totient is φ = 79110721331928.

The previous prime is 82707128156431. The next prime is 82707128156531. The reversal of 82707128156503 is 30565182170728.

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-82707128156503 is a prime.

It is a super-2 number, since 2×82707128156503² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82707128150503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5889763 + ... + 14145796.

It is an arithmetic number, because the mean of its divisors is an integer number (10787946926400).

Almost surely, 2^{82707128156503} is an apocalyptic number.

82707128156503 is a deficient number, since it is larger than the sum of its proper divisors (3596447254697).

82707128156503 is a wasteful number, since it uses less digits than its factorization.

82707128156503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215061.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 82707128156503 in words is "eighty-two trillion, seven hundred seven billion, one hundred twenty-eight million, one hundred fifty-six thousand, five hundred three".