28383620137 has 2 divisors, whose sum is σ = 28383620138. Its totient is φ = 28383620136.

The previous prime is 28383620129. The next prime is 28383620147. The reversal of 28383620137 is 73102638382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21869677456 + 6513942681 = 147884^2 + 80709^2 .

It is a cyclic number.

It is not a de Polignac number, because 28383620137 - 2³ = 28383620129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28383620093 and 28383620102.

It is not a weakly prime, because it can be changed into another prime (28383620147) 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, 14191810068 + 14191810069.

It is an arithmetic number, because the mean of its divisors is an integer number (14191810069).

Almost surely, 2^28383620137 is an apocalyptic number.

It is an amenable number.

28383620137 is a deficient number, since it is larger than the sum of its proper divisors (1).

28383620137 is an equidigital number, since it uses as much as digits as its factorization.

28383620137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 28383620137 in words is "twenty-eight billion, three hundred eighty-three million, six hundred twenty thousand, one hundred thirty-seven".