2158595853 has 4 divisors (see below), whose sum is σ = 2878127808. Its totient is φ = 1439063900.

The previous prime is 2158595849. The next prime is 2158595863. The reversal of 2158595853 is 3585958512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2158595853 - 2² = 2158595849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2158595796 and 2158595805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158595843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359765973 + ... + 359765978.

It is an arithmetic number, because the mean of its divisors is an integer number (719531952).

Almost surely, 2^2158595853 is an apocalyptic number.

It is an amenable number.

2158595853 is a deficient number, since it is larger than the sum of its proper divisors (719531955).

2158595853 is an equidigital number, since it uses as much as digits as its factorization.

2158595853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719531954.

The product of its digits is 2160000, while the sum is 51.

The square root of 2158595853 is about 46460.6914821551. The cubic root of 2158595853 is about 1292.3806474673.

The spelling of 2158595853 in words is "two billion, one hundred fifty-eight million, five hundred ninety-five thousand, eight hundred fifty-three".