20247676288 has 128 divisors (see below), whose sum is σ = 48015267840. Its totient is φ = 8322048000.

The previous prime is 20247676279. The next prime is 20247676291. The reversal of 20247676288 is 88267674202.

It is a happy number.

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

It is a congruent number.

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, 3135463 + ... + 3141913.

It is an arithmetic number, because the mean of its divisors is an integer number (375119280).

Almost surely, 2^20247676288 is an apocalyptic number.

20247676288 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 20247676288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24007633920).

20247676288 is an abundant number, since it is smaller than the sum of its proper divisors (27767591552).

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

20247676288 is a wasteful number, since it uses less digits than its factorization.

20247676288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616 (or 6604 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 20247676288 in words is "twenty billion, two hundred forty-seven million, six hundred seventy-six thousand, two hundred eighty-eight".