28272481123 has 8 divisors (see below), whose sum is σ = 28932237488. Its totient is φ = 27612827424.

The previous prime is 28272481079. The next prime is 28272481169. The reversal of 28272481123 is 32118427282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28272481123 - 2⁹ = 28272480611 is a prime.

It is a super-2 number, since 2×28272481123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28272481423) 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 7 ways as a sum of consecutive naturals, for example, 1072165 + ... + 1098217.

It is an arithmetic number, because the mean of its divisors is an integer number (3616529686).

Almost surely, 2^28272481123 is an apocalyptic number.

28272481123 is a deficient number, since it is larger than the sum of its proper divisors (659756365).

28272481123 is a wasteful number, since it uses less digits than its factorization.

28272481123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51333.

The product of its digits is 86016, while the sum is 40.

The spelling of 28272481123 in words is "twenty-eight billion, two hundred seventy-two million, four hundred eighty-one thousand, one hundred twenty-three".