19417430880 has 144 divisors (see below), whose sum is σ = 67803175440. Its totient is φ = 5057547264.

The previous prime is 19417430831. The next prime is 19417430887. The reversal of 19417430880 is 8803471491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19417430887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94875 + ... + 218714.

It is an arithmetic number, because the mean of its divisors is an integer number (470855385).

Almost surely, 2^19417430880 is an apocalyptic number.

19417430880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19417430880 is an abundant number, since it is smaller than the sum of its proper divisors (48385744560).

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

19417430880 is a wasteful number, since it uses less digits than its factorization.

19417430880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313653 (or 313642 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 19417430880 in words is "nineteen billion, four hundred seventeen million, four hundred thirty thousand, eight hundred eighty".