20358476928 has 128 divisors (see below), whose sum is σ = 60337569600. Its totient is φ = 6757724160.

The previous prime is 20358476927. The next prime is 20358476977. The reversal of 20358476928 is 82967485302.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20358476927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820675 + ... + 845117.

Almost surely, 2^20358476928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20358476928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30168784800).

20358476928 is an abundant number, since it is smaller than the sum of its proper divisors (39979092672).

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

20358476928 is a wasteful number, since it uses less digits than its factorization.

20358476928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24707 (or 24689 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 20358476928 in words is "twenty billion, three hundred fifty-eight million, four hundred seventy-six thousand, nine hundred twenty-eight".