83902885069 has 2 divisors, whose sum is σ = 83902885070. Its totient is φ = 83902885068.

The previous prime is 83902885063. The next prime is 83902885081. The reversal of 83902885069 is 96058820938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81458868100 + 2444016969 = 285410^2 + 49437^2 .

It is a cyclic number.

It is not a de Polignac number, because 83902885069 - 2⁵ = 83902885037 is a prime.

It is a super-2 number, since 2×83902885069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83902885063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41951442534 + 41951442535.

It is an arithmetic number, because the mean of its divisors is an integer number (41951442535).

Almost surely, 2^83902885069 is an apocalyptic number.

It is an amenable number.

83902885069 is a deficient number, since it is larger than the sum of its proper divisors (1).

83902885069 is an equidigital number, since it uses as much as digits as its factorization.

83902885069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 83902885069 in words is "eighty-three billion, nine hundred two million, eight hundred eighty-five thousand, sixty-nine".