2158663853 has 8 divisors (see below), whose sum is σ = 2273219520. Its totient is φ = 2044202400.

The previous prime is 2158663849. The next prime is 2158663909. The reversal of 2158663853 is 3583668512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2158663853 - 2² = 2158663849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2158663798 and 2158663807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158663823) 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 7 ways as a sum of consecutive naturals, for example, 26201 + ... + 70737.

It is an arithmetic number, because the mean of its divisors is an integer number (284152440).

Almost surely, 2^2158663853 is an apocalyptic number.

It is an amenable number.

2158663853 is a deficient number, since it is larger than the sum of its proper divisors (114555667).

2158663853 is a wasteful number, since it uses less digits than its factorization.

2158663853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47107.

The product of its digits is 1036800, while the sum is 47.

The square root of 2158663853 is about 46461.4232778119. The cubic root of 2158663853 is about 1292.3942181659.

The spelling of 2158663853 in words is "two billion, one hundred fifty-eight million, six hundred sixty-three thousand, eight hundred fifty-three".