21750452704 has 24 divisors (see below), whose sum is σ = 42841892520. Its totient is φ = 10869972096.

The previous prime is 21750452699. The next prime is 21750452729. The reversal of 21750452704 is 40725405712.

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, 96499 + ... + 229810.

It is an arithmetic number, because the mean of its divisors is an integer number (1785078855).

Almost surely, 2^21750452704 is an apocalyptic number.

It is an amenable number.

21750452704 is a deficient number, since it is larger than the sum of its proper divisors (21091439816).

21750452704 is a wasteful number, since it uses less digits than its factorization.

21750452704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328402 (or 328394 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 21750452704 in words is "twenty-one billion, seven hundred fifty million, four hundred fifty-two thousand, seven hundred four".