17421748008 has 64 divisors (see below), whose sum is σ = 49786306560. Its totient is φ = 4976654016.

The previous prime is 17421747869. The next prime is 17421748009. The reversal of 17421748008 is 80084712471.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (17421748009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469641 + ... + 1481447.

It is an arithmetic number, because the mean of its divisors is an integer number (777911040).

Almost surely, 2^17421748008 is an apocalyptic number.

It is an amenable number.

17421748008 is an abundant number, since it is smaller than the sum of its proper divisors (32364558552).

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

17421748008 is a wasteful number, since it uses less digits than its factorization.

17421748008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20606 (or 20602 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 17421748008 in words is "seventeen billion, four hundred twenty-one million, seven hundred forty-eight thousand, eight".