21363175352 has 16 divisors (see below), whose sum is σ = 40057769160. Its totient is φ = 10681103584.

The previous prime is 21363175343. The next prime is 21363175363. The reversal of 21363175352 is 25357136312.

It is a super-2 number, since 2×21363175352² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186218 + ... + 278214.

Almost surely, 2^21363175352 is an apocalyptic number.

It is an amenable number.

21363175352 is a deficient number, since it is larger than the sum of its proper divisors (18694593808).

21363175352 is a wasteful number, since it uses less digits than its factorization.

21363175352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121030 (or 121026 counting only the distinct ones).

The product of its digits is 113400, while the sum is 38.

The spelling of 21363175352 in words is "twenty-one billion, three hundred sixty-three million, one hundred seventy-five thousand, three hundred fifty-two".