21962912841 has 24 divisors (see below), whose sum is σ = 32596331040. Its totient is φ = 14241585600.

The previous prime is 21962912821. The next prime is 21962912879. The reversal of 21962912841 is 14821926912.

It is a happy number.

21962912841 is a `hidden beast` number, since 2 + 1 + 9 + 629 + 12 + 8 + 4 + 1 = 666.

It is not a de Polignac number, because 21962912841 - 2¹⁷ = 21962781769 is a prime.

It is a super-2 number, since 2×21962912841² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21962912821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32230 + ... + 212048.

It is an arithmetic number, because the mean of its divisors is an integer number (1358180460).

Almost surely, 2^21962912841 is an apocalyptic number.

It is an amenable number.

21962912841 is a deficient number, since it is larger than the sum of its proper divisors (10633418199).

21962912841 is a wasteful number, since it uses less digits than its factorization.

21962912841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180197 (or 180194 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The spelling of 21962912841 in words is "twenty-one billion, nine hundred sixty-two million, nine hundred twelve thousand, eight hundred forty-one".