21450611105463 has 8 divisors (see below), whose sum is σ = 28629160514800. Its totient is φ = 14286234549888.

The previous prime is 21450611105461. The next prime is 21450611105467. The reversal of 21450611105463 is 36450111605412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21450611105463 - 2¹ = 21450611105461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21450611105461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3543209908 + ... + 3543215961.

It is an arithmetic number, because the mean of its divisors is an integer number (3578645064350).

Almost surely, 2^{21450611105463} is an apocalyptic number.

21450611105463 is a deficient number, since it is larger than the sum of its proper divisors (7178549409337).

21450611105463 is a wasteful number, since it uses less digits than its factorization.

21450611105463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086426881.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 21450611105463 in words is "twenty-one trillion, four hundred fifty billion, six hundred eleven million, one hundred five thousand, four hundred sixty-three".