28144676747 has 8 divisors (see below), whose sum is σ = 31048265520. Its totient is φ = 25298584960.

The previous prime is 28144676737. The next prime is 28144676803. The reversal of 28144676747 is 74767644182.

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

It is not a de Polignac number, because 28144676747 - 2⁸ = 28144676491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28144676692 and 28144676701.

It is not an unprimeable number, because it can be changed into a prime (28144676717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14373218 + ... + 14375175.

It is an arithmetic number, because the mean of its divisors is an integer number (3881033190).

Almost surely, 2^28144676747 is an apocalyptic number.

28144676747 is a deficient number, since it is larger than the sum of its proper divisors (2903588773).

28144676747 is a wasteful number, since it uses less digits than its factorization.

28144676747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28748493.

The product of its digits is 12644352, while the sum is 56.

The spelling of 28144676747 in words is "twenty-eight billion, one hundred forty-four million, six hundred seventy-six thousand, seven hundred forty-seven".