28307837441 has 8 divisors (see below), whose sum is σ = 30496163880. Its totient is φ = 26121053952.

The previous prime is 28307837413. The next prime is 28307837447. The reversal of 28307837441 is 14473870382.

It can be written as a sum of positive squares in 4 ways, for example, as 92236816 + 28215600625 = 9604^2 + 167975^2 .

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 28307837441 - 2¹⁴ = 28307821057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28307837447) 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, 347486 + ... + 421143.

It is an arithmetic number, because the mean of its divisors is an integer number (3812020485).

Almost surely, 2^28307837441 is an apocalyptic number.

It is an amenable number.

28307837441 is a deficient number, since it is larger than the sum of its proper divisors (2188326439).

28307837441 is a wasteful number, since it uses less digits than its factorization.

28307837441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771475.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 28307837441 in words is "twenty-eight billion, three hundred seven million, eight hundred thirty-seven thousand, four hundred forty-one".