83712666797 has 8 divisors (see below), whose sum is σ = 84051560952. Its totient is φ = 83373875200.

The previous prime is 83712666767. The next prime is 83712666811. The reversal of 83712666797 is 79766621738.

It can be written as a sum of positive squares in 4 ways, for example, as 35050953961 + 48661712836 = 187219^2 + 220594^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 83712666797 - 2¹⁶ = 83712601261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83712666767) 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, 1900847 + ... + 1944387.

It is an arithmetic number, because the mean of its divisors is an integer number (10506445119).

Almost surely, 2^83712666797 is an apocalyptic number.

It is an amenable number.

83712666797 is a deficient number, since it is larger than the sum of its proper divisors (338894155).

83712666797 is a wasteful number, since it uses less digits than its factorization.

83712666797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51279.

The product of its digits is 32006016, while the sum is 62.

The spelling of 83712666797 in words is "eighty-three billion, seven hundred twelve million, six hundred sixty-six thousand, seven hundred ninety-seven".