21464046412 has 12 divisors (see below), whose sum is σ = 37583160496. Its totient is φ = 10726000560.

The previous prime is 21464046391. The next prime is 21464046469.

21464046412 is nontrivially palindromic in base 10.

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, 1497639 + ... + 1511902.

Almost surely, 2^21464046412 is an apocalyptic number.

It is an amenable number.

21464046412 is a deficient number, since it is larger than the sum of its proper divisors (16119114084).

21464046412 is a wasteful number, since it uses less digits than its factorization.

21464046412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011328 (or 3011326 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 21464046412 in words is "twenty-one billion, four hundred sixty-four million, forty-six thousand, four hundred twelve".