20488289641 has 8 divisors (see below), whose sum is σ = 20536167744. Its totient is φ = 20440467600.

The previous prime is 20488289597. The next prime is 20488289711. The reversal of 20488289641 is 14698288402.

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 20488289641 - 2¹³ = 20488281449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20488280641) 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, 767775 + ... + 794011.

It is an arithmetic number, because the mean of its divisors is an integer number (2567020968).

Almost surely, 2^20488289641 is an apocalyptic number.

It is an amenable number.

20488289641 is a deficient number, since it is larger than the sum of its proper divisors (47878103).

20488289641 is a wasteful number, since it uses less digits than its factorization.

20488289641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28031.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 20488289641 in words is "twenty billion, four hundred eighty-eight million, two hundred eighty-nine thousand, six hundred forty-one".