21364117540363 has 8 divisors (see below), whose sum is σ = 23007861094400. Its totient is φ = 19720423971648.

The previous prime is 21364117540361. The next prime is 21364117540417. The reversal of 21364117540363 is 36304571146312.

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

It is a cyclic number.

It is not a de Polignac number, because 21364117540363 - 2¹ = 21364117540361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21364117540361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11606283 + ... + 13320436.

It is an arithmetic number, because the mean of its divisors is an integer number (2875982636800).

Almost surely, 2^{21364117540363} is an apocalyptic number.

21364117540363 is a deficient number, since it is larger than the sum of its proper divisors (1643743554037).

21364117540363 is a wasteful number, since it uses less digits than its factorization.

21364117540363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24992661.

The product of its (nonzero) digits is 1088640, while the sum is 46.

Adding to 21364117540363 its reverse (36304571146312), we get a palindrome (57668688686675).

The spelling of 21364117540363 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred seventeen million, five hundred forty thousand, three hundred sixty-three".