21652734148 has 48 divisors (see below), whose sum is σ = 40347465984. Its totient is φ = 10132231680.

The previous prime is 21652734139. The next prime is 21652734163. The reversal of 21652734148 is 84143725612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14502090 + ... + 14503582.

It is an arithmetic number, because the mean of its divisors is an integer number (840572208).

Almost surely, 2^21652734148 is an apocalyptic number.

It is an amenable number.

21652734148 is a deficient number, since it is larger than the sum of its proper divisors (18694731836).

21652734148 is a wasteful number, since it uses less digits than its factorization.

21652734148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2570 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The spelling of 21652734148 in words is "twenty-one billion, six hundred fifty-two million, seven hundred thirty-four thousand, one hundred forty-eight".