21488333275604 has 96 divisors (see below), whose sum is σ = 42432464363520. Its totient is φ = 9455907662208.

The previous prime is 21488333275583. The next prime is 21488333275631. The reversal of 21488333275604 is 40657233388412.

It is a self number, because there is not a number n which added to its sum of digits gives 21488333275604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39560117 + ... + 40099619.

It is an arithmetic number, because the mean of its divisors is an integer number (442004837120).

Almost surely, 2^{21488333275604} is an apocalyptic number.

It is an amenable number.

21488333275604 is a deficient number, since it is larger than the sum of its proper divisors (20944131087916).

21488333275604 is a wasteful number, since it uses less digits than its factorization.

21488333275604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539989 (or 539987 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 21488333275604 in words is "twenty-one trillion, four hundred eighty-eight billion, three hundred thirty-three million, two hundred seventy-five thousand, six hundred four".