21967949348 has 12 divisors (see below), whose sum is σ = 38473424640. Its totient is φ = 10975542312.

The previous prime is 21967949309. The next prime is 21967949401. The reversal of 21967949348 is 84394976912.

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, 2102228 + ... + 2112651.

It is an arithmetic number, because the mean of its divisors is an integer number (3206118720).

Almost surely, 2^21967949348 is an apocalyptic number.

It is an amenable number.

21967949348 is a deficient number, since it is larger than the sum of its proper divisors (16505475292).

21967949348 is a wasteful number, since it uses less digits than its factorization.

21967949348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216186 (or 4216184 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 62.

The spelling of 21967949348 in words is "twenty-one billion, nine hundred sixty-seven million, nine hundred forty-nine thousand, three hundred forty-eight".