83732379569 has 2 divisors, whose sum is σ = 83732379570. Its totient is φ = 83732379568.

The previous prime is 83732379553. The next prime is 83732379617. The reversal of 83732379569 is 96597323738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77332379569 + 6400000000 = 278087^2 + 80000^2 .

It is a cyclic number.

It is not a de Polignac number, because 83732379569 - 2⁴ = 83732379553 is a prime.

It is a super-2 number, since 2×83732379569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83732379529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41866189784 + 41866189785.

It is an arithmetic number, because the mean of its divisors is an integer number (41866189785).

Almost surely, 2^83732379569 is an apocalyptic number.

It is an amenable number.

83732379569 is a deficient number, since it is larger than the sum of its proper divisors (1).

83732379569 is an equidigital number, since it uses as much as digits as its factorization.

83732379569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 62.

The spelling of 83732379569 in words is "eighty-three billion, seven hundred thirty-two million, three hundred seventy-nine thousand, five hundred sixty-nine".