19409081845930 has 64 divisors (see below), whose sum is σ = 42083061615360. Its totient is φ = 6296147311104.

The previous prime is 19409081845927. The next prime is 19409081845961. The reversal of 19409081845930 is 3954818090491.

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, 8411299 + ... + 10467478.

It is an arithmetic number, because the mean of its divisors is an integer number (657547837740).

Almost surely, 2^{19409081845930} is an apocalyptic number.

19409081845930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19409081845930 is an abundant number, since it is smaller than the sum of its proper divisors (22673979769430).

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

19409081845930 is a wasteful number, since it uses less digits than its factorization.

19409081845930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879583.

The product of its (nonzero) digits is 11197440, while the sum is 61.

The spelling of 19409081845930 in words is "nineteen trillion, four hundred nine billion, eighty-one million, eight hundred forty-five thousand, nine hundred thirty".