16863563463 has 8 divisors (see below), whose sum is σ = 22568338800. Its totient is φ = 11200581888.

The previous prime is 16863563441. The next prime is 16863563473. The reversal of 16863563463 is 36436536861.

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

It is not a de Polignac number, because 16863563463 - 2¹⁶ = 16863497927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16863563473) 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, 10447498 + ... + 10449111.

It is an arithmetic number, because the mean of its divisors is an integer number (2821042350).

Almost surely, 2^16863563463 is an apocalyptic number.

16863563463 is a deficient number, since it is larger than the sum of its proper divisors (5704775337).

16863563463 is a wasteful number, since it uses less digits than its factorization.

16863563463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20896881.

The product of its digits is 5598720, while the sum is 51.

The spelling of 16863563463 in words is "sixteen billion, eight hundred sixty-three million, five hundred sixty-three thousand, four hundred sixty-three".