83878653885133 has 2 divisors, whose sum is σ = 83878653885134. Its totient is φ = 83878653885132.

The previous prime is 83878653885079. The next prime is 83878653885137. The reversal of 83878653885133 is 33158835687838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56474653861444 + 27404000023689 = 7514962^2 + 5234883^2 .

It is a cyclic number.

It is not a de Polignac number, because 83878653885133 - 2²⁹ = 83878117014221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83878653885133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83878653885137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41939326942566 + 41939326942567.

It is an arithmetic number, because the mean of its divisors is an integer number (41939326942567).

Almost surely, 2^{83878653885133} is an apocalyptic number.

It is an amenable number.

83878653885133 is a deficient number, since it is larger than the sum of its proper divisors (1).

83878653885133 is an equidigital number, since it uses as much as digits as its factorization.

83878653885133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2786918400, while the sum is 76.

The spelling of 83878653885133 in words is "eighty-three trillion, eight hundred seventy-eight billion, six hundred fifty-three million, eight hundred eighty-five thousand, one hundred thirty-three".