83279129677 has 2 divisors, whose sum is σ = 83279129678. Its totient is φ = 83279129676.

The previous prime is 83279129513. The next prime is 83279129701. The reversal of 83279129677 is 77692197238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81629632681 + 1649496996 = 285709^2 + 40614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83279129677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83279129177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41639564838 + 41639564839.

It is an arithmetic number, because the mean of its divisors is an integer number (41639564839).

Almost surely, 2^83279129677 is an apocalyptic number.

It is an amenable number.

83279129677 is a deficient number, since it is larger than the sum of its proper divisors (1).

83279129677 is an equidigital number, since it uses as much as digits as its factorization.

83279129677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16003008, while the sum is 61.

The spelling of 83279129677 in words is "eighty-three billion, two hundred seventy-nine million, one hundred twenty-nine thousand, six hundred seventy-seven".