20734482888 has 288 divisors, whose sum is σ = 72178853760. Its totient is φ = 5332884480.

The previous prime is 20734482869. The next prime is 20734482929. The reversal of 20734482888 is 88828443702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1371933 + ... + 1386963.

It is an arithmetic number, because the mean of its divisors is an integer number (250621020).

Almost surely, 2^20734482888 is an apocalyptic number.

20734482888 is a gapful number since it is divisible by the number (28) 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 20734482888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36089426880).

20734482888 is an abundant number, since it is smaller than the sum of its proper divisors (51444370872).

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

20734482888 is a wasteful number, since it uses less digits than its factorization.

20734482888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15097 (or 15083 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 54.

The spelling of 20734482888 in words is "twenty billion, seven hundred thirty-four million, four hundred eighty-two thousand, eight hundred eighty-eight".