28288771841 has 8 divisors (see below), whose sum is σ = 31207226400. Its totient is φ = 25428108640.

The previous prime is 28288771811. The next prime is 28288771843. The reversal of 28288771841 is 14817788282.

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

It is not a de Polignac number, because 28288771841 - 2¹⁰ = 28288770817 is a prime.

It is a super-2 number, since 2×28288771841² (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 (28288771843) 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, 14446811 + ... + 14448768.

It is an arithmetic number, because the mean of its divisors is an integer number (3900903300).

Almost surely, 2^28288771841 is an apocalyptic number.

It is an amenable number.

28288771841 is a deficient number, since it is larger than the sum of its proper divisors (2918454559).

28288771841 is a wasteful number, since it uses less digits than its factorization.

28288771841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28895679.

The product of its digits is 3211264, while the sum is 56.

The spelling of 28288771841 in words is "twenty-eight billion, two hundred eighty-eight million, seven hundred seventy-one thousand, eight hundred forty-one".