21296275848681 has 8 divisors (see below), whose sum is σ = 28559167612800. Its totient is φ = 14115450658512.

The previous prime is 21296275848607. The next prime is 21296275848697. The reversal of 21296275848681 is 18684857269212.

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

It is not a de Polignac number, because 21296275848681 - 2³⁴ = 21279095979497 is a prime.

It is a super-2 number, since 2×21296275848681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21296275848781) 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 7 ways as a sum of consecutive naturals, for example, 20516642881 + ... + 20516643918.

It is an arithmetic number, because the mean of its divisors is an integer number (3569895951600).

Almost surely, 2^{21296275848681} is an apocalyptic number.

It is an amenable number.

21296275848681 is a deficient number, since it is larger than the sum of its proper divisors (7262891764119).

21296275848681 is a wasteful number, since it uses less digits than its factorization.

21296275848681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41033286975.

The product of its digits is 185794560, while the sum is 69.

The spelling of 21296275848681 in words is "twenty-one trillion, two hundred ninety-six billion, two hundred seventy-five million, eight hundred forty-eight thousand, six hundred eighty-one".