21463662521063 has 16 divisors (see below), whose sum is σ = 25909073541120. Its totient is φ = 17369654341536.

The previous prime is 21463662521017. The next prime is 21463662521069. The reversal of 21463662521063 is 36012526636412.

It is not a de Polignac number, because 21463662521063 - 2¹⁴ = 21463662504679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21463662520999 and 21463662521017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21463662521069) 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, 275355095 + ... + 275433032.

It is an arithmetic number, because the mean of its divisors is an integer number (1619317096320).

Almost surely, 2^{21463662521063} is an apocalyptic number.

21463662521063 is a deficient number, since it is larger than the sum of its proper divisors (4445411020057).

21463662521063 is a wasteful number, since it uses less digits than its factorization.

21463662521063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550788446.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 21463662521063 in words is "twenty-one trillion, four hundred sixty-three billion, six hundred sixty-two million, five hundred twenty-one thousand, sixty-three".