20741743872 has 360 divisors, whose sum is σ = 65483480832. Its totient is φ = 6519398400.

The previous prime is 20741743859. The next prime is 20741743933. The reversal of 20741743872 is 27834714702.

20741743872 is a `hidden beast` number, since 207 + 4 + 1 + 7 + 438 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26355063 + ... + 26355849.

Almost surely, 2^20741743872 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 20741743872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32741740416).

20741743872 is an abundant number, since it is smaller than the sum of its proper divisors (44741736960).

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

20741743872 is an equidigital number, since it uses as much as digits as its factorization.

20741743872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 20741743872 in words is "twenty billion, seven hundred forty-one million, seven hundred forty-three thousand, eight hundred seventy-two".