82707129723 has 4 divisors (see below), whose sum is σ = 110276172968. Its totient is φ = 55138086480.

The previous prime is 82707129697. The next prime is 82707129761. The reversal of 82707129723 is 32792170728.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82707129723 - 2²⁸ = 82438694267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82707129793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13784521618 + ... + 13784521623.

It is an arithmetic number, because the mean of its divisors is an integer number (27569043242).

Almost surely, 2^82707129723 is an apocalyptic number.

82707129723 is a deficient number, since it is larger than the sum of its proper divisors (27569043245).

82707129723 is a wasteful number, since it uses less digits than its factorization.

82707129723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27569043244.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 82707129723 in words is "eighty-two billion, seven hundred seven million, one hundred twenty-nine thousand, seven hundred twenty-three".