21845341752 has 64 divisors (see below), whose sum is σ = 58832796960. Its totient is φ = 6719539200.

The previous prime is 21845341703. The next prime is 21845341753. The reversal of 21845341752 is 25714354812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21845341753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201852 + ... + 1219892.

Almost surely, 2^21845341752 is an apocalyptic number.

It is an amenable number.

21845341752 is an abundant number, since it is smaller than the sum of its proper divisors (36987455208).

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

21845341752 is a wasteful number, since it uses less digits than its factorization.

21845341752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21944 (or 21940 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The spelling of 21845341752 in words is "twenty-one billion, eight hundred forty-five million, three hundred forty-one thousand, seven hundred fifty-two".