21450023405041 has 16 divisors (see below), whose sum is σ = 27311883909120. Its totient is φ = 16358680460880.

The previous prime is 21450023405021. The next prime is 21450023405047. The reversal of 21450023405041 is 14050432005412.

It is a cyclic number.

It is not a de Polignac number, because 21450023405041 - 2¹⁵ = 21450023372273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21450023404994 and 21450023405012.

It is not an unprimeable number, because it can be changed into a prime (21450023405047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963525451 + ... + 2963532688.

It is an arithmetic number, because the mean of its divisors is an integer number (1706992744320).

Almost surely, 2^{21450023405041} is an apocalyptic number.

It is an amenable number.

21450023405041 is a deficient number, since it is larger than the sum of its proper divisors (5861860504079).

21450023405041 is a wasteful number, since it uses less digits than its factorization.

21450023405041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927058204.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 21450023405041 in words is "twenty-one trillion, four hundred fifty billion, twenty-three million, four hundred five thousand, forty-one".