20445839076 has 96 divisors (see below), whose sum is σ = 53550235648. Its totient is φ = 6028836480.

The previous prime is 20445839039. The next prime is 20445839087. The reversal of 20445839076 is 67093854402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 477585 + ... + 518631.

Almost surely, 2^20445839076 is an apocalyptic number.

20445839076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20445839076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26775117824).

20445839076 is an abundant number, since it is smaller than the sum of its proper divisors (33104396572).

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

20445839076 is a wasteful number, since it uses less digits than its factorization.

20445839076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41201 (or 41199 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 20445839076 in words is "twenty billion, four hundred forty-five million, eight hundred thirty-nine thousand, seventy-six".