83379575569 has 2 divisors, whose sum is σ = 83379575570. Its totient is φ = 83379575568.

The previous prime is 83379575501. The next prime is 83379575593. The reversal of 83379575569 is 96557597338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54143705344 + 29235870225 = 232688^2 + 170985^2 .

It is a cyclic number.

It is not a de Polignac number, because 83379575569 - 2⁷ = 83379575441 is a prime.

It is a super-2 number, since 2×83379575569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83379575869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41689787784 + 41689787785.

It is an arithmetic number, because the mean of its divisors is an integer number (41689787785).

Almost surely, 2^83379575569 is an apocalyptic number.

It is an amenable number.

83379575569 is a deficient number, since it is larger than the sum of its proper divisors (1).

83379575569 is an equidigital number, since it uses as much as digits as its factorization.

83379575569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326000, while the sum is 67.

The spelling of 83379575569 in words is "eighty-three billion, three hundred seventy-nine million, five hundred seventy-five thousand, five hundred sixty-nine".