83956129277 has 2 divisors, whose sum is σ = 83956129278. Its totient is φ = 83956129276.

The previous prime is 83956129267. The next prime is 83956129343. The reversal of 83956129277 is 77292165938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60332131876 + 23623997401 = 245626^2 + 153701^2 .

It is a cyclic number.

It is not a de Polignac number, because 83956129277 - 2⁴ = 83956129261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83956129267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41978064638 + 41978064639.

It is an arithmetic number, because the mean of its divisors is an integer number (41978064639).

Almost surely, 2^83956129277 is an apocalyptic number.

It is an amenable number.

83956129277 is a deficient number, since it is larger than the sum of its proper divisors (1).

83956129277 is an equidigital number, since it uses as much as digits as its factorization.

83956129277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 59.

The spelling of 83956129277 in words is "eighty-three billion, nine hundred fifty-six million, one hundred twenty-nine thousand, two hundred seventy-seven".