28972040219 has 16 divisors (see below), whose sum is σ = 29777844096. Its totient is φ = 28177459200.

The previous prime is 28972040213. The next prime is 28972040221. The reversal of 28972040219 is 91204027982.

It is a cyclic number.

It is not a de Polignac number, because 28972040219 - 2²⁴ = 28955263003 is a prime.

It is a super-2 number, since 2×28972040219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28972040219.

It is not an unprimeable number, because it can be changed into a prime (28972040213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11069399 + ... + 11072015.

It is an arithmetic number, because the mean of its divisors is an integer number (1861115256).

Almost surely, 2^28972040219 is an apocalyptic number.

28972040219 is a deficient number, since it is larger than the sum of its proper divisors (805803877).

28972040219 is a wasteful number, since it uses less digits than its factorization.

28972040219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 28972040219 in words is "twenty-eight billion, nine hundred seventy-two million, forty thousand, two hundred nineteen".