83379575869 has 2 divisors, whose sum is σ = 83379575870. Its totient is φ = 83379575868.

The previous prime is 83379575809. The next prime is 83379575897. The reversal of 83379575869 is 96857597338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55019331844 + 28360244025 = 234562^2 + 168405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83379575869 is a prime.

It is a super-2 number, since 2×83379575869² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83379575798 and 83379575807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83379575809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41689787934 + 41689787935.

It is an arithmetic number, because the mean of its divisors is an integer number (41689787935).

Almost surely, 2^83379575869 is an apocalyptic number.

It is an amenable number.

83379575869 is a deficient number, since it is larger than the sum of its proper divisors (1).

83379575869 is an equidigital number, since it uses as much as digits as its factorization.

83379575869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 342921600, while the sum is 70.

The spelling of 83379575869 in words is "eighty-three billion, three hundred seventy-nine million, five hundred seventy-five thousand, eight hundred sixty-nine".