21414896832 has 56 divisors (see below), whose sum is σ = 64754573056. Its totient is φ = 6118541568.

The previous prime is 21414896831. The next prime is 21414896857. The reversal of 21414896832 is 23869841412.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×21414896832³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (21414896831) by changing a digit.

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, 7965508 + ... + 7968195.

Almost surely, 2^21414896832 is an apocalyptic number.

It is an amenable number.

21414896832 is an abundant number, since it is smaller than the sum of its proper divisors (43339676224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21414896832 is a wasteful number, since it uses less digits than its factorization.

21414896832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15933725 (or 15933715 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The spelling of 21414896832 in words is "twenty-one billion, four hundred fourteen million, eight hundred ninety-six thousand, eight hundred thirty-two".