21152854294141 has 8 divisors (see below), whose sum is σ = 21450471186944. Its totient is φ = 20855449611360.

The previous prime is 21152854294093. The next prime is 21152854294211. The reversal of 21152854294141 is 14149245825112.

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

It is a cyclic number.

It is not a de Polignac number, because 21152854294141 - 2¹⁷ = 21152854163069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21152854291141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52851741 + ... + 53250466.

It is an arithmetic number, because the mean of its divisors is an integer number (2681308898368).

Almost surely, 2^{21152854294141} is an apocalyptic number.

It is an amenable number.

21152854294141 is a deficient number, since it is larger than the sum of its proper divisors (297616892803).

21152854294141 is a wasteful number, since it uses less digits than its factorization.

21152854294141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106105011.

The product of its digits is 921600, while the sum is 49.

The spelling of 21152854294141 in words is "twenty-one trillion, one hundred fifty-two billion, eight hundred fifty-four million, two hundred ninety-four thousand, one hundred forty-one".