21004689106410 has 16 divisors (see below), whose sum is σ = 50411253855456. Its totient is φ = 5601250428368.

The previous prime is 21004689106409. The next prime is 21004689106483. The reversal of 21004689106410 is 1460198640012.

It is a Curzon 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, 350078151744 + ... + 350078151803.

It is an arithmetic number, because the mean of its divisors is an integer number (3150703365966).

Almost surely, 2^{21004689106410} is an apocalyptic number.

21004689106410 is an abundant number, since it is smaller than the sum of its proper divisors (29406564749046).

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

21004689106410 is a wasteful number, since it uses less digits than its factorization.

21004689106410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700156303557.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 21004689106410 in words is "twenty-one trillion, four billion, six hundred eighty-nine million, one hundred six thousand, four hundred ten".