109720900947 has 16 divisors (see below), whose sum is σ = 172959056640. Its totient is φ = 60535669152.

The previous prime is 109720900907. The next prime is 109720900951. The reversal of 109720900947 is 749009027901.

It is a happy number.

It is not a de Polignac number, because 109720900947 - 2¹⁰ = 109720899923 is a prime.

It is a super-2 number, since 2×109720900947² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109720900896 and 109720900905.

It is not an unprimeable number, because it can be changed into a prime (109720900907) 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 in 15 ways as a sum of consecutive naturals, for example, 90082233 + ... + 90083450.

It is an arithmetic number, because the mean of its divisors is an integer number (10809941040).

Almost surely, 2^109720900947 is an apocalyptic number.

109720900947 is a deficient number, since it is larger than the sum of its proper divisors (63238155693).

109720900947 is a wasteful number, since it uses less digits than its factorization.

109720900947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180165722.

The product of its (nonzero) digits is 285768, while the sum is 48.

The spelling of 109720900947 in words is "one hundred nine billion, seven hundred twenty million, nine hundred thousand, nine hundred forty-seven".