109642441125 has 64 divisors (see below), whose sum is σ = 208749146112. Its totient is φ = 50064436800.

The previous prime is 109642441091. The next prime is 109642441127. The reversal of 109642441125 is 521144246901.

It is not a de Polignac number, because 109642441125 - 2⁶ = 109642441061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109642441127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2294224 + ... + 2341526.

It is an arithmetic number, because the mean of its divisors is an integer number (3261705408).

Almost surely, 2^109642441125 is an apocalyptic number.

109642441125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109642441125 is a deficient number, since it is larger than the sum of its proper divisors (99106704987).

109642441125 is an equidigital number, since it uses as much as digits as its factorization.

109642441125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48211 (or 48201 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 109642441125 in words is "one hundred nine billion, six hundred forty-two million, four hundred forty-one thousand, one hundred twenty-five".