21153027352 has 16 divisors (see below), whose sum is σ = 39664100160. Its totient is φ = 10575933984.

The previous prime is 21153027349. The next prime is 21153027383. The reversal of 21153027352 is 25372035112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109498 + ... + 233014.

It is an arithmetic number, because the mean of its divisors is an integer number (2479006260).

Almost surely, 2^21153027352 is an apocalyptic number.

It is an amenable number.

21153027352 is a deficient number, since it is larger than the sum of its proper divisors (18511072808).

21153027352 is a wasteful number, since it uses less digits than its factorization.

21153027352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144930 (or 144926 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 21153027352 in words is "twenty-one billion, one hundred fifty-three million, twenty-seven thousand, three hundred fifty-two".