21424804608334 has 16 divisors (see below), whose sum is σ = 32409177181056. Its totient is φ = 10622004939000.

The previous prime is 21424804608281. The next prime is 21424804608373. The reversal of 21424804608334 is 43380640842412.

It is a congruent number.

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, 64682212 + ... + 65012599.

It is an arithmetic number, because the mean of its divisors is an integer number (2025573573816).

Almost surely, 2^{21424804608334} is an apocalyptic number.

21424804608334 is a deficient number, since it is larger than the sum of its proper divisors (10984372572722).

21424804608334 is a wasteful number, since it uses less digits than its factorization.

21424804608334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129695511.

The product of its (nonzero) digits is 3538944, while the sum is 49.

The spelling of 21424804608334 in words is "twenty-one trillion, four hundred twenty-four billion, eight hundred four million, six hundred eight thousand, three hundred thirty-four".