20752447459 has 8 divisors (see below), whose sum is σ = 21482577792. Its totient is φ = 20026110720.

The previous prime is 20752447447. The next prime is 20752447517. The reversal of 20752447459 is 95474425702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20752447459 - 2¹⁵ = 20752414691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20752447439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937264 + ... + 959149.

It is an arithmetic number, because the mean of its divisors is an integer number (2685322224).

Almost surely, 2^20752447459 is an apocalyptic number.

20752447459 is a deficient number, since it is larger than the sum of its proper divisors (730130333).

20752447459 is a wasteful number, since it uses less digits than its factorization.

20752447459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896797.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 20752447459 in words is "twenty billion, seven hundred fifty-two million, four hundred forty-seven thousand, four hundred fifty-nine".