21648300712 has 96 divisors (see below), whose sum is σ = 45161987400. Its totient is φ = 9712055808.

The previous prime is 21648300703. The next prime is 21648300719. The reversal of 21648300712 is 21700384612.

It can be written as a sum of positive squares in 4 ways, for example, as 18641533156 + 3006767556 = 136534^2 + 54834^2 .

It is not an unprimeable number, because it can be changed into a prime (21648300719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4436418 + ... + 4441294.

Almost surely, 2^21648300712 is an apocalyptic number.

It is an amenable number.

21648300712 is an abundant number, since it is smaller than the sum of its proper divisors (23513686688).

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

21648300712 is a wasteful number, since it uses less digits than its factorization.

21648300712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 21648300712 in words is "twenty-one billion, six hundred forty-eight million, three hundred thousand, seven hundred twelve".