109618471829 has 2 divisors, whose sum is σ = 109618471830. Its totient is φ = 109618471828.

The previous prime is 109618471811. The next prime is 109618471849. The reversal of 109618471829 is 928174816901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75281640625 + 34336831204 = 274375^2 + 185302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109618471829 is a prime.

It is a super-2 number, since 2×109618471829² (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 (109618471849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54809235914 + 54809235915.

It is an arithmetic number, because the mean of its divisors is an integer number (54809235915).

Almost surely, 2^109618471829 is an apocalyptic number.

It is an amenable number.

109618471829 is a deficient number, since it is larger than the sum of its proper divisors (1).

109618471829 is an equidigital number, since it uses as much as digits as its factorization.

109618471829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 56.

The spelling of 109618471829 in words is "one hundred nine billion, six hundred eighteen million, four hundred seventy-one thousand, eight hundred twenty-nine".