21868616003 has 8 divisors (see below), whose sum is σ = 24362914800. Its totient is φ = 19490331168.

The previous prime is 21868615997. The next prime is 21868616017. The reversal of 21868616003 is 30061686812.

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 21868616003 - 2³⁰ = 20794874179 is a prime.

It is a super-3 number, since 3×21868616003³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21868616093) 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, 29003093 + ... + 29003846.

It is an arithmetic number, because the mean of its divisors is an integer number (3045364350).

Almost surely, 2^21868616003 is an apocalyptic number.

21868616003 is a deficient number, since it is larger than the sum of its proper divisors (2494298797).

21868616003 is a wasteful number, since it uses less digits than its factorization.

21868616003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58006981.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 21868616003 in words is "twenty-one billion, eight hundred sixty-eight million, six hundred sixteen thousand, three".