83129528756 has 6 divisors (see below), whose sum is σ = 145476675330. Its totient is φ = 41564764376.

The previous prime is 83129528701. The next prime is 83129528791. The reversal of 83129528756 is 65782592138.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75341466256 + 7788062500 = 274484^2 + 88250^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10391191091 + ... + 10391191098.

It is an arithmetic number, because the mean of its divisors is an integer number (24246112555).

Almost surely, 2^83129528756 is an apocalyptic number.

It is an amenable number.

83129528756 is a deficient number, since it is larger than the sum of its proper divisors (62347146574).

83129528756 is a wasteful number, since it uses less digits than its factorization.

83129528756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20782382193 (or 20782382191 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 83129528756 in words is "eighty-three billion, one hundred twenty-nine million, five hundred twenty-eight thousand, seven hundred fifty-six".