21241868011676 has 12 divisors (see below), whose sum is σ = 40032751252872. Its totient is φ = 9803939082288.

The previous prime is 21241868011673. The next prime is 21241868011697. The reversal of 21241868011676 is 67611086814212.

It is a happy number.

It is a super-3 number, since 3×21241868011676³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241868011673) 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 3 ways as a sum of consecutive naturals, for example, 204248730830 + ... + 204248730933.

It is an arithmetic number, because the mean of its divisors is an integer number (3336062604406).

Almost surely, 2^{21241868011676} is an apocalyptic number.

21241868011676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21241868011676 is a deficient number, since it is larger than the sum of its proper divisors (18790883241196).

21241868011676 is a wasteful number, since it uses less digits than its factorization.

21241868011676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408497461780 (or 408497461778 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 21241868011676 in words is "twenty-one trillion, two hundred forty-one billion, eight hundred sixty-eight million, eleven thousand, six hundred seventy-six".