2108356653 has 32 divisors (see below), whose sum is σ = 3115082880. Its totient is φ = 1260149760.

The previous prime is 2108356631. The next prime is 2108356673. The reversal of 2108356653 is 3566538012.

It is not a de Polignac number, because 2108356653 - 2³⁰ = 1034614829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108356673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369738 + ... + 375396.

It is an arithmetic number, because the mean of its divisors is an integer number (97346340).

Almost surely, 2^2108356653 is an apocalyptic number.

It is an amenable number.

2108356653 is a deficient number, since it is larger than the sum of its proper divisors (1006726227).

2108356653 is a wasteful number, since it uses less digits than its factorization.

2108356653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2108356653 is about 45916.8449809000. The cubic root of 2108356653 is about 1282.2755446979.

The spelling of 2108356653 in words is "two billion, one hundred eight million, three hundred fifty-six thousand, six hundred fifty-three".