21046839806010 has 32 divisors (see below), whose sum is σ = 50512551223680. Its totient is φ = 5612475538368.

The previous prime is 21046839806009. The next prime is 21046839806089. The reversal of 21046839806010 is 1060893864012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14631411 + ... + 16005369.

It is an arithmetic number, because the mean of its divisors is an integer number (1578517225740).

Almost surely, 2^{21046839806010} is an apocalyptic number.

21046839806010 is an abundant number, since it is smaller than the sum of its proper divisors (29465711417670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21046839806010 is a wasteful number, since it uses less digits than its factorization.

21046839806010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884582.

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 21046839806010 in words is "twenty-one trillion, forty-six billion, eight hundred thirty-nine million, eight hundred six thousand, ten".