2108935899975 has 96 divisors (see below), whose sum is σ = 3617018496000. Its totient is φ = 1083508300800.

The previous prime is 2108935899953. The next prime is 2108935899977. The reversal of 2108935899975 is 5799985398012.

It is a happy number.

It is not a de Polignac number, because 2108935899975 - 2⁹ = 2108935899463 is a prime.

It is a super-2 number, since 2×2108935899975² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a junction number, because it is equal to n+sod(n) for n = 2108935899897 and 2108935899906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108935899977) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 110527486 + ... + 110546564.

It is an arithmetic number, because the mean of its divisors is an integer number (37677276000).

Almost surely, 2^{2108935899975} is an apocalyptic number.

2108935899975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2108935899975 is a deficient number, since it is larger than the sum of its proper divisors (1508082596025).

2108935899975 is a wasteful number, since it uses less digits than its factorization.

2108935899975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19585 (or 19580 counting only the distinct ones).

The product of its (nonzero) digits is 440899200, while the sum is 75.

The spelling of 2108935899975 in words is "two trillion, one hundred eight billion, nine hundred thirty-five million, eight hundred ninety-nine thousand, nine hundred seventy-five".