109756010849 has 18 divisors (see below), whose sum is σ = 114189568290. Its totient is φ = 105491016000.

The previous prime is 109756010839. The next prime is 109756010863. The reversal of 109756010849 is 948010657901.

It can be written as a sum of positive squares in only one way, i.e., 92577190225 + 17178820624 = 304265^2 + 131068^2 .

It is a de Polignac number, because none of the positive numbers 2^k-109756010849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109756010797 and 109756010806.

It is not an unprimeable number, because it can be changed into a prime (109756010809) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21909257 + ... + 21914265.

It is an arithmetic number, because the mean of its divisors is an integer number (6343864905).

Almost surely, 2^109756010849 is an apocalyptic number.

It is an amenable number.

109756010849 is a deficient number, since it is larger than the sum of its proper divisors (4433557441).

109756010849 is an frugal number, since it uses more digits than its factorization.

109756010849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 109756010849 in words is "one hundred nine billion, seven hundred fifty-six million, ten thousand, eight hundred forty-nine".