17720134848 has 168 divisors, whose sum is σ = 54807916800. Its totient is φ = 5441458176.

The previous prime is 17720134819. The next prime is 17720134877. The reversal of 17720134848 is 84843102771.

It is an interprime number because it is at equal distance from previous prime (17720134819) and next prime (17720134877).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4258593 + ... + 4262751.

It is an arithmetic number, because the mean of its divisors is an integer number (326237600).

Almost surely, 2^17720134848 is an apocalyptic number.

17720134848 is a gapful number since it is divisible by the number (18) 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 17720134848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27403958400).

17720134848 is an abundant number, since it is smaller than the sum of its proper divisors (37087781952).

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

17720134848 is a wasteful number, since it uses less digits than its factorization.

17720134848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759 (or 4746 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 17720134848 in words is "seventeen billion, seven hundred twenty million, one hundred thirty-four thousand, eight hundred forty-eight".