2153650503643 has 4 divisors (see below), whose sum is σ = 2153672031168. Its totient is φ = 2153628976120.

The previous prime is 2153650503527. The next prime is 2153650503649. The reversal of 2153650503643 is 3463050563512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153650503643 - 2³³ = 2145060569051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153650503643.

It is not an unprimeable number, because it can be changed into a prime (2153650503649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10612996 + ... + 10814017.

It is an arithmetic number, because the mean of its divisors is an integer number (538418007792).

Almost surely, 2^{2153650503643} is an apocalyptic number.

2153650503643 is a deficient number, since it is larger than the sum of its proper divisors (21527525).

2153650503643 is a wasteful number, since it uses less digits than its factorization.

2153650503643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21527524.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 2153650503643 in words is "two trillion, one hundred fifty-three billion, six hundred fifty million, five hundred three thousand, six hundred forty-three".