21063792903839 has 8 divisors (see below), whose sum is σ = 24072988855968. Its totient is φ = 18054617621760.

The previous prime is 21063792903823. The next prime is 21063792903997. The reversal of 21063792903839 is 93830929736012.

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 21063792903839 - 2⁴ = 21063792903823 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 (21063792903809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918582 + ... + 7116579.

It is an arithmetic number, because the mean of its divisors is an integer number (3009123606996).

Almost surely, 2^{21063792903839} is an apocalyptic number.

21063792903839 is a deficient number, since it is larger than the sum of its proper divisors (3009195952129).

21063792903839 is a wasteful number, since it uses less digits than its factorization.

21063792903839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335025.

The product of its (nonzero) digits is 26453952, while the sum is 62.

The spelling of 21063792903839 in words is "twenty-one trillion, sixty-three billion, seven hundred ninety-two million, nine hundred three thousand, eight hundred thirty-nine".