21480866866741 has 16 divisors (see below), whose sum is σ = 22243123468800. Its totient is φ = 20720050848000.

The previous prime is 21480866866729. The next prime is 21480866866769. The reversal of 21480866866741 is 14766866808412.

It is not a de Polignac number, because 21480866866741 - 2⁵ = 21480866866709 is a prime.

It is a super-2 number, since 2×21480866866741² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21480866863741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282460000 + ... + 282536038.

It is an arithmetic number, because the mean of its divisors is an integer number (1390195216800).

Almost surely, 2^{21480866866741} is an apocalyptic number.

It is an amenable number.

21480866866741 is a deficient number, since it is larger than the sum of its proper divisors (762256602059).

21480866866741 is a wasteful number, since it uses less digits than its factorization.

21480866866741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85380.

The product of its (nonzero) digits is 148635648, while the sum is 67.

The spelling of 21480866866741 in words is "twenty-one trillion, four hundred eighty billion, eight hundred sixty-six million, eight hundred sixty-six thousand, seven hundred forty-one".