21402104602 has 16 divisors (see below), whose sum is σ = 33796224000. Its totient is φ = 10136810880.

The previous prime is 21402104597. The next prime is 21402104611. The reversal of 21402104602 is 20640120412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459274 + ... + 503722.

It is an arithmetic number, because the mean of its divisors is an integer number (2112264000).

Almost surely, 2^21402104602 is an apocalyptic number.

21402104602 is a deficient number, since it is larger than the sum of its proper divisors (12394119398).

21402104602 is a wasteful number, since it uses less digits than its factorization.

21402104602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57141.

The product of its (nonzero) digits is 768, while the sum is 22.

The spelling of 21402104602 in words is "twenty-one billion, four hundred two million, one hundred four thousand, six hundred two".