19473049280 has 112 divisors (see below), whose sum is σ = 48163666944. Its totient is φ = 7491087360.

The previous prime is 19473049237. The next prime is 19473049283. The reversal of 19473049280 is 8294037491.

It is a super-2 number, since 2×19473049280² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19473049283) 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, 1610939 + ... + 1622981.

Almost surely, 2^19473049280 is an apocalyptic number.

19473049280 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 19473049280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24081833472).

19473049280 is an abundant number, since it is smaller than the sum of its proper divisors (28690617664).

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

19473049280 is a wasteful number, since it uses less digits than its factorization.

19473049280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254 (or 12244 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 19473049280 in words is "nineteen billion, four hundred seventy-three million, forty-nine thousand, two hundred eighty".