21523044002750 has 128 divisors (see below), whose sum is σ = 41826474144000. Its totient is φ = 8287526400000.

The previous prime is 21523044002729. The next prime is 21523044002767. The reversal of 21523044002750 is 5720044032512.

It is a self number, because there is not a number n which added to its sum of digits gives 21523044002750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230568086 + ... + 230661414.

It is an arithmetic number, because the mean of its divisors is an integer number (326769329250).

Almost surely, 2^{21523044002750} is an apocalyptic number.

21523044002750 is a deficient number, since it is larger than the sum of its proper divisors (20303430141250).

21523044002750 is a wasteful number, since it uses less digits than its factorization.

21523044002750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93687 (or 93677 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 21523044002750 in words is "twenty-one trillion, five hundred twenty-three billion, forty-four million, two thousand, seven hundred fifty".