28219382140719 has 128 divisors (see below), whose sum is σ = 48373319909376. Its totient is φ = 14209364736000.

The previous prime is 28219382140687. The next prime is 28219382140723. The reversal of 28219382140719 is 91704128391282.

It is a happy number.

It is not a de Polignac number, because 28219382140719 - 2⁵ = 28219382140687 is a prime.

It is a super-4 number, since 4×28219382140719⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28219382142719) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2684231607 + ... + 2684242119.

It is an arithmetic number, because the mean of its divisors is an integer number (377916561792).

Almost surely, 2^{28219382140719} is an apocalyptic number.

28219382140719 is a deficient number, since it is larger than the sum of its proper divisors (20153937768657).

28219382140719 is a wasteful number, since it uses less digits than its factorization.

28219382140719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 28219382140719 in words is "twenty-eight trillion, two hundred nineteen billion, three hundred eighty-two million, one hundred forty thousand, seven hundred nineteen".