20488633507 has 8 divisors (see below), whose sum is σ = 21002376384. Its totient is φ = 19976584488.

The previous prime is 20488633481. The next prime is 20488633511. The reversal of 20488633507 is 70533688402.

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 20488633507 - 2⁷ = 20488633379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20488633537) by changing a digit.

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, 398953 + ... + 447370.

It is an arithmetic number, because the mean of its divisors is an integer number (2625297048).

Almost surely, 2^20488633507 is an apocalyptic number.

20488633507 is a deficient number, since it is larger than the sum of its proper divisors (513742877).

20488633507 is an equidigital number, since it uses as much as digits as its factorization.

20488633507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846929.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 20488633507 in words is "twenty billion, four hundred eighty-eight million, six hundred thirty-three thousand, five hundred seven".