21214036536675 has 24 divisors (see below), whose sum is σ = 35125681614576. Its totient is φ = 11297440602240.

The previous prime is 21214036536617. The next prime is 21214036536677. The reversal of 21214036536675 is 57663563041212.

It is not a de Polignac number, because 21214036536675 - 2¹³ = 21214036528483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21214036536677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208851604 + ... + 208953153.

It is an arithmetic number, because the mean of its divisors is an integer number (1463570067274).

Almost surely, 2^{21214036536675} is an apocalyptic number.

21214036536675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21214036536675 is a deficient number, since it is larger than the sum of its proper divisors (13911645077901).

21214036536675 is a wasteful number, since it uses less digits than its factorization.

21214036536675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417805447 (or 417805442 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 51.

Adding to 21214036536675 its reverse (57663563041212), we get a palindrome (78877599577887).

The spelling of 21214036536675 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-six thousand, six hundred seventy-five".