20500426752 has 208 divisors, whose sum is σ = 62336786400. Its totient is φ = 5935988736.

The previous prime is 20500426733. The next prime is 20500426763. The reversal of 20500426752 is 25762400502.

It is a tau number, because it is divible by the number of its divisors (208).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2711874 + ... + 2719422.

Almost surely, 2^20500426752 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 20500426752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31168393200).

20500426752 is an abundant number, since it is smaller than the sum of its proper divisors (41836359648).

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

20500426752 is a wasteful number, since it uses less digits than its factorization.

20500426752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606 (or 7584 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 20500426752 in words is "twenty billion, five hundred million, four hundred twenty-six thousand, seven hundred fifty-two".