867063549921 has 16 divisors (see below), whose sum is σ = 1157877721728. Its totient is φ = 577146080000.

The previous prime is 867063549881. The next prime is 867063549931. The reversal of 867063549921 is 129945360768.

867063549921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 867063549921 - 2¹¹ = 867063547873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867063549931) 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, 21024121 + ... + 21065321.

It is an arithmetic number, because the mean of its divisors is an integer number (72367357608).

It is a 1-persistent number, because it is pandigital, but 2⋅867063549921 = 1734127099842 is not.

Almost surely, 2^867063549921 is an apocalyptic number.

It is an amenable number.

867063549921 is a deficient number, since it is larger than the sum of its proper divisors (290814171807).

867063549921 is a wasteful number, since it uses less digits than its factorization.

867063549921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51912.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 867063549921 in words is "eight hundred sixty-seven billion, sixty-three million, five hundred forty-nine thousand, nine hundred twenty-one".