21367904041 has 8 divisors (see below), whose sum is σ = 23591290464. Its totient is φ = 19191325920.

The previous prime is 21367904029. The next prime is 21367904059. The reversal of 21367904041 is 14040976312.

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 21367904041 - 2¹¹ = 21367901993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21367904021) 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 7 ways as a sum of consecutive naturals, for example, 11701116 + ... + 11702941.

It is an arithmetic number, because the mean of its divisors is an integer number (2948911308).

Almost surely, 2^21367904041 is an apocalyptic number.

It is an amenable number.

21367904041 is a deficient number, since it is larger than the sum of its proper divisors (2223386423).

21367904041 is a wasteful number, since it uses less digits than its factorization.

21367904041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23404151.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 21367904041 in words is "twenty-one billion, three hundred sixty-seven million, nine hundred four thousand, forty-one".