21467745453232 has 20 divisors (see below), whose sum is σ = 44793276571120. Its totient is φ = 9908190209088.

The previous prime is 21467745453169. The next prime is 21467745453283. The reversal of 21467745453232 is 23235454776412.

It is a happy number.

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, 51605157132 + ... + 51605157547.

It is an arithmetic number, because the mean of its divisors is an integer number (2239663828556).

Almost surely, 2^{21467745453232} is an apocalyptic number.

It is an amenable number.

21467745453232 is an abundant number, since it is smaller than the sum of its proper divisors (23325531117888).

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

21467745453232 is a wasteful number, since it uses less digits than its factorization.

21467745453232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103210314700 (or 103210314694 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 55.

The spelling of 21467745453232 in words is "twenty-one trillion, four hundred sixty-seven billion, seven hundred forty-five million, four hundred fifty-three thousand, two hundred thirty-two".