21930634305430 has 8 divisors (see below), whose sum is σ = 39475141749792. Its totient is φ = 8772253722168.

The previous prime is 21930634305403. The next prime is 21930634305473. The reversal of 21930634305430 is 3450343603912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096531715262 + ... + 1096531715281.

It is an arithmetic number, because the mean of its divisors is an integer number (4934392718724).

Almost surely, 2^{21930634305430} is an apocalyptic number.

21930634305430 is a deficient number, since it is larger than the sum of its proper divisors (17544507444362).

21930634305430 is a wasteful number, since it uses less digits than its factorization.

21930634305430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193063430550.

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 21930634305430 in words is "twenty-one trillion, nine hundred thirty billion, six hundred thirty-four million, three hundred five thousand, four hundred thirty".