21439267619006 has 32 divisors (see below), whose sum is σ = 32543789160960. Its totient is φ = 10592121256416.

The previous prime is 21439267618987. The next prime is 21439267619017. The reversal of 21439267619006 is 60091676293412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399073415 + ... + 399127133.

It is an arithmetic number, because the mean of its divisors is an integer number (1016993411280).

Almost surely, 2^{21439267619006} is an apocalyptic number.

21439267619006 is a deficient number, since it is larger than the sum of its proper divisors (11104521541954).

21439267619006 is a wasteful number, since it uses less digits than its factorization.

21439267619006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60968.

The product of its (nonzero) digits is 5878656, while the sum is 56.

The spelling of 21439267619006 in words is "twenty-one trillion, four hundred thirty-nine billion, two hundred sixty-seven million, six hundred nineteen thousand, six".