20488953344 has 40 divisors (see below), whose sum is σ = 41250527208. Its totient is φ = 10166241280.

The previous prime is 20488953343. The next prime is 20488953347. The reversal of 20488953344 is 44335988402.

It is a junction number, because it is equal to n+sod(n) for n = 20488953292 and 20488953301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488953343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85667 + ... + 219810.

Almost surely, 2^20488953344 is an apocalyptic number.

It is an amenable number.

20488953344 is an abundant number, since it is smaller than the sum of its proper divisors (20761573864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20488953344 is an equidigital number, since it uses as much as digits as its factorization.

20488953344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305626 (or 305610 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 20488953344 in words is "twenty billion, four hundred eighty-eight million, nine hundred fifty-three thousand, three hundred forty-four".