21063792903998 has 16 divisors (see below), whose sum is σ = 34408443036240. Its totient is φ = 9612517417536.

The previous prime is 21063792903997. The next prime is 21063792904019. The reversal of 21063792903998 is 89930929736012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21063792903997) 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, 4551379040 + ... + 4551383667.

It is an arithmetic number, because the mean of its divisors is an integer number (2150527689765).

Almost surely, 2^{21063792903998} is an apocalyptic number.

21063792903998 is a deficient number, since it is larger than the sum of its proper divisors (13344650132242).

21063792903998 is a wasteful number, since it uses less digits than its factorization.

21063792903998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102762811.

The product of its (nonzero) digits is 79361856, while the sum is 68.

The spelling of 21063792903998 in words is "twenty-one trillion, sixty-three billion, seven hundred ninety-two million, nine hundred three thousand, nine hundred ninety-eight".