28044650131 has 2 divisors, whose sum is σ = 28044650132. Its totient is φ = 28044650130.

The previous prime is 28044650111. The next prime is 28044650177. The reversal of 28044650131 is 13105644082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28044650131 - 2¹⁹ = 28044125843 is a prime.

It is a super-2 number, since 2×28044650131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28044650111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14022325065 + 14022325066.

It is an arithmetic number, because the mean of its divisors is an integer number (14022325066).

Almost surely, 2^28044650131 is an apocalyptic number.

28044650131 is a deficient number, since it is larger than the sum of its proper divisors (1).

28044650131 is an equidigital number, since it uses as much as digits as its factorization.

28044650131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 28044650131 in words is "twenty-eight billion, forty-four million, six hundred fifty thousand, one hundred thirty-one".