106748840909 has 2 divisors, whose sum is σ = 106748840910. Its totient is φ = 106748840908.

The previous prime is 106748840903. The next prime is 106748840921. The reversal of 106748840909 is 909048847601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77811428809 + 28937412100 = 278947^2 + 170110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106748840909 is a prime.

It is a super-2 number, since 2×106748840909² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106748840903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53374420454 + 53374420455.

It is an arithmetic number, because the mean of its divisors is an integer number (53374420455).

Almost surely, 2^106748840909 is an apocalyptic number.

It is an amenable number.

106748840909 is a deficient number, since it is larger than the sum of its proper divisors (1).

106748840909 is an equidigital number, since it uses as much as digits as its factorization.

106748840909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 106748840909 in words is "one hundred six billion, seven hundred forty-eight million, eight hundred forty thousand, nine hundred nine".