19873002248 has 108 divisors (see below), whose sum is σ = 43033887645. Its totient is φ = 8596575680.

The previous prime is 19873002241. The next prime is 19873002257. The reversal of 19873002248 is 84220037891.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 12732414244 + 7140588004 = 112838^2 + 84502^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=99682.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19873002199 and 19873002208.

It is not an unprimeable number, because it can be changed into a prime (19873002241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 100878086 + ... + 100878282.

Almost surely, 2^19873002248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19873002248

19873002248 is an abundant number, since it is smaller than the sum of its proper divisors (23160885397).

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

19873002248 is a wasteful number, since it uses less digits than its factorization.

19873002248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 19873002248 in words is "nineteen billion, eight hundred seventy-three million, two thousand, two hundred forty-eight".