21214036536676 has 12 divisors (see below), whose sum is σ = 37131440169600. Its totient is φ = 10605053631080.

The previous prime is 21214036536617. The next prime is 21214036536677. The reversal of 21214036536676 is 67663563041212.

It is a happy number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491135020 + ... + 491178211.

It is an arithmetic number, because the mean of its divisors is an integer number (3094286680800).

Almost surely, 2^{21214036536676} is an apocalyptic number.

It is an amenable number.

21214036536676 is a deficient number, since it is larger than the sum of its proper divisors (15917403632924).

21214036536676 is a wasteful number, since it uses less digits than its factorization.

21214036536676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982318634 (or 982318632 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

Adding to 21214036536676 its reverse (67663563041212), we get a palindrome (88877599577888).

The spelling of 21214036536676 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-six thousand, six hundred seventy-six".