100644843918135 has 32 divisors (see below), whose sum is σ = 176296164076800. Its totient is φ = 48623843475200.

The previous prime is 100644843918121. The next prime is 100644843918139. The reversal of 100644843918135 is 531819348446001.

100644843918135 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 100644843918135 - 2⁴ = 100644843918119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100644843918139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085307285 + ... + 1085400014.

It is an arithmetic number, because the mean of its divisors is an integer number (5509255127400).

Almost surely, 2^{100644843918135} is an apocalyptic number.

100644843918135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100644843918135 is a deficient number, since it is larger than the sum of its proper divisors (75651320158665).

100644843918135 is a wasteful number, since it uses less digits than its factorization.

100644843918135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170707599.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 100644843918135 in words is "one hundred trillion, six hundred forty-four billion, eight hundred forty-three million, nine hundred eighteen thousand, one hundred thirty-five".