19466294320 has 80 divisors (see below), whose sum is σ = 49422506400. Its totient is φ = 7071641600.

The previous prime is 19466294311. The next prime is 19466294327. The reversal of 19466294320 is 2349266491.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×19466294320² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19466294327) 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, 923256 + ... + 944104.

It is an arithmetic number, because the mean of its divisors is an integer number (617781330).

Almost surely, 2^19466294320 is an apocalyptic number.

19466294320 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 19466294320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24711253200).

19466294320 is an abundant number, since it is smaller than the sum of its proper divisors (29956212080).

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

19466294320 is a wasteful number, since it uses less digits than its factorization.

19466294320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21934 (or 21928 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 19466294320 in words is "nineteen billion, four hundred sixty-six million, two hundred ninety-four thousand, three hundred twenty".