21010728000041 has 48 divisors (see below), whose sum is σ = 24753055353600. Its totient is φ = 17717122455552.

The previous prime is 21010728000023. The next prime is 21010728000043. The reversal of 21010728000041 is 14000082701012.

It is not a de Polignac number, because 21010728000041 - 2¹⁴ = 21010727983657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010728000043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16911461 + ... + 18111293.

It is an arithmetic number, because the mean of its divisors is an integer number (515688653200).

Almost surely, 2^{21010728000041} is an apocalyptic number.

It is an amenable number.

21010728000041 is a deficient number, since it is larger than the sum of its proper divisors (3742327353559).

21010728000041 is a wasteful number, since it uses less digits than its factorization.

21010728000041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200018 (or 1200001 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 21010728000041 in words is "twenty-one trillion, ten billion, seven hundred twenty-eight million, forty-one", and thus it is an aban number.