19888147752 has 128 divisors (see below), whose sum is σ = 55617408000. Its totient is φ = 5874301440.

The previous prime is 19888147711. The next prime is 19888147757. The reversal of 19888147752 is 25774188891.

It is not an unprimeable number, because it can be changed into a prime (19888147757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6457749 + ... + 6460827.

It is an arithmetic number, because the mean of its divisors is an integer number (434511000).

Almost surely, 2^19888147752 is an apocalyptic number.

19888147752 is a gapful number since it is divisible by the number (12) 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 19888147752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27808704000).

19888147752 is an abundant number, since it is smaller than the sum of its proper divisors (35729260248).

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

19888147752 is a wasteful number, since it uses less digits than its factorization.

19888147752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711 (or 3707 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 60.

The spelling of 19888147752 in words is "nineteen billion, eight hundred eighty-eight million, one hundred forty-seven thousand, seven hundred fifty-two".