17398861420 has 12 divisors (see below), whose sum is σ = 36537609024. Its totient is φ = 6959544560.

The previous prime is 17398861409. The next prime is 17398861553. The reversal of 17398861420 is 2416889371.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434971516 + ... + 434971555.

It is an arithmetic number, because the mean of its divisors is an integer number (3044800752).

Almost surely, 2^17398861420 is an apocalyptic number.

17398861420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17398861420 is an abundant number, since it is smaller than the sum of its proper divisors (19138747604).

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

17398861420 is a wasteful number, since it uses less digits than its factorization.

17398861420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869943080 (or 869943078 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 17398861420 in words is "seventeen billion, three hundred ninety-eight million, eight hundred sixty-one thousand, four hundred twenty".