21236050053488 has 40 divisors (see below), whose sum is σ = 42028909486560. Its totient is φ = 10392063073280.

The previous prime is 21236050053467. The next prime is 21236050053619. The reversal of 21236050053488 is 88435005063212.

It is a super-2 number, since 2×21236050053488² (a number of 27 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 7 ways as a sum of consecutive naturals, for example, 68069573 + ... + 68380836.

It is an arithmetic number, because the mean of its divisors is an integer number (1050722737164).

Almost surely, 2^{21236050053488} is an apocalyptic number.

It is an amenable number.

21236050053488 is a deficient number, since it is larger than the sum of its proper divisors (20792859433072).

21236050053488 is a wasteful number, since it uses less digits than its factorization.

21236050053488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136450625 (or 136450619 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 21236050053488 in words is "twenty-one trillion, two hundred thirty-six billion, fifty million, fifty-three thousand, four hundred eighty-eight".