83756664806575 has 24 divisors (see below), whose sum is σ = 109991361138048. Its totient is φ = 63135458659680.

The previous prime is 83756664806569. The next prime is 83756664806609. The reversal of 83756664806575 is 57560846665738.

It is not a de Polignac number, because 83756664806575 - 2⁹ = 83756664806063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1087004497 + ... + 1087081546.

It is an arithmetic number, because the mean of its divisors is an integer number (4582973380752).

Almost surely, 2^{83756664806575} is an apocalyptic number.

83756664806575 is a deficient number, since it is larger than the sum of its proper divisors (26234696331473).

83756664806575 is a wasteful number, since it uses less digits than its factorization.

83756664806575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174086143 (or 2174086138 counting only the distinct ones).

The product of its (nonzero) digits is 6096384000, while the sum is 76.

The spelling of 83756664806575 in words is "eighty-three trillion, seven hundred fifty-six billion, six hundred sixty-four million, eight hundred six thousand, five hundred seventy-five".