21347674312 has 32 divisors (see below), whose sum is σ = 40646806200. Its totient is φ = 10509696000.

The previous prime is 21347674291. The next prime is 21347674321.

21347674312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 15748744036 + 5598930276 = 125494^2 + 74826^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73264 + ... + 219232.

Almost surely, 2^21347674312 is an apocalyptic number.

It is an amenable number.

21347674312 is a deficient number, since it is larger than the sum of its proper divisors (19299131888).

21347674312 is a wasteful number, since it uses less digits than its factorization.

21347674312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146257 (or 146253 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The spelling of 21347674312 in words is "twenty-one billion, three hundred forty-seven million, six hundred seventy-four thousand, three hundred twelve".