83880136213 has 2 divisors, whose sum is σ = 83880136214. Its totient is φ = 83880136212.

The previous prime is 83880136117. The next prime is 83880136217. The reversal of 83880136213 is 31263108838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59899136049 + 23981000164 = 244743^2 + 154858^2 .

It is a cyclic number.

It is not a de Polignac number, because 83880136213 - 2¹⁷ = 83880005141 is a prime.

It is a super-2 number, since 2×83880136213² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83880136213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83880136217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41940068106 + 41940068107.

It is an arithmetic number, because the mean of its divisors is an integer number (41940068107).

Almost surely, 2^83880136213 is an apocalyptic number.

It is an amenable number.

83880136213 is a deficient number, since it is larger than the sum of its proper divisors (1).

83880136213 is an equidigital number, since it uses as much as digits as its factorization.

83880136213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 83880136213 in words is "eighty-three billion, eight hundred eighty million, one hundred thirty-six thousand, two hundred thirteen".