21562314548 has 24 divisors (see below), whose sum is σ = 39966623424. Its totient is φ = 10143689600.

The previous prime is 21562314493. The next prime is 21562314569. The reversal of 21562314548 is 84541326512.

It is a congruent number.

It is an unprimeable number.

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, 167303 + ... + 266673.

It is an arithmetic number, because the mean of its divisors is an integer number (1665275976).

Almost surely, 2^21562314548 is an apocalyptic number.

It is an amenable number.

21562314548 is a deficient number, since it is larger than the sum of its proper divisors (18404308876).

21562314548 is a wasteful number, since it uses less digits than its factorization.

21562314548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102583 (or 102581 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The spelling of 21562314548 in words is "twenty-one billion, five hundred sixty-two million, three hundred fourteen thousand, five hundred forty-eight".