28820073941 has 2 divisors, whose sum is σ = 28820073942. Its totient is φ = 28820073940.

The previous prime is 28820073899. The next prime is 28820073991. The reversal of 28820073941 is 14937002882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22990140625 + 5829933316 = 151625^2 + 76354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28820073941 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28820073892 and 28820073901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28820073991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14410036970 + 14410036971.

It is an arithmetic number, because the mean of its divisors is an integer number (14410036971).

Almost surely, 2^28820073941 is an apocalyptic number.

It is an amenable number.

28820073941 is a deficient number, since it is larger than the sum of its proper divisors (1).

28820073941 is an equidigital number, since it uses as much as digits as its factorization.

28820073941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 28820073941 in words is "twenty-eight billion, eight hundred twenty million, seventy-three thousand, nine hundred forty-one".