20235788888 has 32 divisors (see below), whose sum is σ = 43368360960. Its totient is φ = 8671289760.

The previous prime is 20235788843. The next prime is 20235788929. The reversal of 20235788888 is 88888753202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475943 + ... + 516713.

It is an arithmetic number, because the mean of its divisors is an integer number (1355261280).

Almost surely, 2^20235788888 is an apocalyptic number.

20235788888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20235788888 is an abundant number, since it is smaller than the sum of its proper divisors (23132572072).

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

20235788888 is a wasteful number, since it uses less digits than its factorization.

20235788888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49647 (or 49643 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 59.

The spelling of 20235788888 in words is "twenty billion, two hundred thirty-five million, seven hundred eighty-eight thousand, eight hundred eighty-eight".