28163041537 has 2 divisors, whose sum is σ = 28163041538. Its totient is φ = 28163041536.

The previous prime is 28163041531. The next prime is 28163041553. The reversal of 28163041537 is 73514036182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28103504881 + 59536656 = 167641^2 + 7716^2 .

It is a cyclic number.

It is not a de Polignac number, because 28163041537 - 2¹⁹ = 28162517249 is a prime.

It is a super-2 number, since 2×28163041537² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28163041537.

It is not a weakly prime, because it can be changed into another prime (28163041531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14081520768 + 14081520769.

It is an arithmetic number, because the mean of its divisors is an integer number (14081520769).

Almost surely, 2^28163041537 is an apocalyptic number.

It is an amenable number.

28163041537 is a deficient number, since it is larger than the sum of its proper divisors (1).

28163041537 is an equidigital number, since it uses as much as digits as its factorization.

28163041537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 28163041537 in words is "twenty-eight billion, one hundred sixty-three million, forty-one thousand, five hundred thirty-seven".