83549069069 has 2 divisors, whose sum is σ = 83549069070. Its totient is φ = 83549069068.

The previous prime is 83549069063. The next prime is 83549069111. The reversal of 83549069069 is 96096094538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42668272969 + 40880796100 = 206563^2 + 202190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83549069069 is a prime.

It is a super-2 number, since 2×83549069069² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83549068999 and 83549069017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83549069063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41774534534 + 41774534535.

It is an arithmetic number, because the mean of its divisors is an integer number (41774534535).

Almost surely, 2^83549069069 is an apocalyptic number.

It is an amenable number.

83549069069 is a deficient number, since it is larger than the sum of its proper divisors (1).

83549069069 is an equidigital number, since it uses as much as digits as its factorization.

83549069069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 83549069069 in words is "eighty-three billion, five hundred forty-nine million, sixty-nine thousand, sixty-nine".