83388380129 has 2 divisors, whose sum is σ = 83388380130. Its totient is φ = 83388380128.

The previous prime is 83388380113. The next prime is 83388380143. The reversal of 83388380129 is 92108388338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83266873600 + 121506529 = 288560^2 + 11023^2 .

It is a cyclic number.

It is not a de Polignac number, because 83388380129 - 2⁴ = 83388380113 is a prime.

It is not a weakly prime, because it can be changed into another prime (83388380149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41694190064 + 41694190065.

It is an arithmetic number, because the mean of its divisors is an integer number (41694190065).

Almost surely, 2^83388380129 is an apocalyptic number.

It is an amenable number.

83388380129 is a deficient number, since it is larger than the sum of its proper divisors (1).

83388380129 is an equidigital number, since it uses as much as digits as its factorization.

83388380129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 83388380129 in words is "eighty-three billion, three hundred eighty-eight million, three hundred eighty thousand, one hundred twenty-nine".