21350672234 has 8 divisors (see below), whose sum is σ = 32707412928. Its totient is φ = 10448201260.

The previous prime is 21350672227. The next prime is 21350672237. The reversal of 21350672234 is 43227605312.

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

It is a junction number, because it is equal to n+sod(n) for n = 21350672194 and 21350672203.

It is not an unprimeable number, because it can be changed into a prime (21350672237) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 113567312 + ... + 113567499.

It is an arithmetic number, because the mean of its divisors is an integer number (4088426616).

Almost surely, 2^21350672234 is an apocalyptic number.

21350672234 is a deficient number, since it is larger than the sum of its proper divisors (11356740694).

21350672234 is a wasteful number, since it uses less digits than its factorization.

21350672234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227134860.

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 21350672234 in words is "twenty-one billion, three hundred fifty million, six hundred seventy-two thousand, two hundred thirty-four".