17428993500 has 96 divisors (see below), whose sum is σ = 50872872960. Its totient is φ = 4636776000.

The previous prime is 17428993481. The next prime is 17428993537. The reversal of 17428993500 is 539982471.

It is a self number, because there is not a number n which added to its sum of digits gives 17428993500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633021 + ... + 659979.

It is an arithmetic number, because the mean of its divisors is an integer number (529925760).

Almost surely, 2^17428993500 is an apocalyptic number.

17428993500 is a gapful number since it is divisible by the number (10) 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 17428993500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25436436480).

17428993500 is an abundant number, since it is smaller than the sum of its proper divisors (33443879460).

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

17428993500 is a wasteful number, since it uses less digits than its factorization.

17428993500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27412 (or 27400 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 17428993500 in words is "seventeen billion, four hundred twenty-eight million, nine hundred ninety-three thousand, five hundred".