21402636432010 has 16 divisors (see below), whose sum is σ = 38543902623072. Its totient is φ = 8556797451600.

The previous prime is 21402636431959. The next prime is 21402636432041. The reversal of 21402636432010 is 1023463620412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532119036 + ... + 532159255.

It is an arithmetic number, because the mean of its divisors is an integer number (2408993913942).

Almost surely, 2^{21402636432010} is an apocalyptic number.

21402636432010 is a deficient number, since it is larger than the sum of its proper divisors (17141266191062).

21402636432010 is a wasteful number, since it uses less digits than its factorization.

21402636432010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064280309.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 21402636432010 in words is "twenty-one trillion, four hundred two billion, six hundred thirty-six million, four hundred thirty-two thousand, ten".