20943396434 has 8 divisors (see below), whose sum is σ = 31424743920. Its totient is φ = 10468481796.

The previous prime is 20943396401. The next prime is 20943396451. The reversal of 20943396434 is 43469334902.

20943396434 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon 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, 1600064 + ... + 1613099.

It is an arithmetic number, because the mean of its divisors is an integer number (3928092990).

Almost surely, 2^20943396434 is an apocalyptic number.

20943396434 is a deficient number, since it is larger than the sum of its proper divisors (10481347486).

20943396434 is a wasteful number, since it uses less digits than its factorization.

20943396434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216424.

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 20943396434 in words is "twenty billion, nine hundred forty-three million, three hundred ninety-six thousand, four hundred thirty-four".