20248609488 has 20 divisors (see below), whose sum is σ = 52308907968. Its totient is φ = 6749536480.

The previous prime is 20248609483. The next prime is 20248609517. The reversal of 20248609488 is 88490684202.

It is a self number, because there is not a number n which added to its sum of digits gives 20248609488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20248609483) 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, 210922968 + ... + 210923063.

Almost surely, 2^20248609488 is an apocalyptic number.

It is an amenable number.

20248609488 is an abundant number, since it is smaller than the sum of its proper divisors (32060298480).

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

20248609488 is a wasteful number, since it uses less digits than its factorization.

20248609488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421846042 (or 421846036 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 20248609488 in words is "twenty billion, two hundred forty-eight million, six hundred nine thousand, four hundred eighty-eight".