28273409148337 has 4 divisors (see below), whose sum is σ = 28274467588900. Its totient is φ = 28272350707776.

The previous prime is 28273409148323. The next prime is 28273409148377. The reversal of 28273409148337 is 73384190437282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27621709764496 + 651699383841 = 5255636^2 + 807279^2 .

It is a cyclic number.

It is not a de Polignac number, because 28273409148337 - 2¹⁹ = 28273408624049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28273409148317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529180212 + ... + 529233637.

It is an arithmetic number, because the mean of its divisors is an integer number (7068616897225).

Almost surely, 2^{28273409148337} is an apocalyptic number.

It is an amenable number.

28273409148337 is a deficient number, since it is larger than the sum of its proper divisors (1058440563).

28273409148337 is a wasteful number, since it uses less digits than its factorization.

28273409148337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058440562.

The product of its (nonzero) digits is 48771072, while the sum is 61.

The spelling of 28273409148337 in words is "twenty-eight trillion, two hundred seventy-three billion, four hundred nine million, one hundred forty-eight thousand, three hundred thirty-seven".