2153533140943 has 4 divisors (see below), whose sum is σ = 2179479323448. Its totient is φ = 2127586958440.

The previous prime is 2153533140923. The next prime is 2153533140947. The reversal of 2153533140943 is 3490413353512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153533140943 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 2153533140943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153533140947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12973091128 + ... + 12973091293.

It is an arithmetic number, because the mean of its divisors is an integer number (544869830862).

Almost surely, 2^{2153533140943} is an apocalyptic number.

2153533140943 is a deficient number, since it is larger than the sum of its proper divisors (25946182505).

2153533140943 is an equidigital number, since it uses as much as digits as its factorization.

2153533140943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25946182504.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 2153533140943 in words is "two trillion, one hundred fifty-three billion, five hundred thirty-three million, one hundred forty thousand, nine hundred forty-three".