28949815733 has 2 divisors, whose sum is σ = 28949815734. Its totient is φ = 28949815732.

The previous prime is 28949815721. The next prime is 28949815751. The reversal of 28949815733 is 33751894982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17439315364 + 11510500369 = 132058^2 + 107287^2 .

It is a cyclic number.

It is not a de Polignac number, because 28949815733 - 2⁴ = 28949815717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28949815793) 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, 14474907866 + 14474907867.

It is an arithmetic number, because the mean of its divisors is an integer number (14474907867).

Almost surely, 2^28949815733 is an apocalyptic number.

It is an amenable number.

28949815733 is a deficient number, since it is larger than the sum of its proper divisors (1).

28949815733 is an equidigital number, since it uses as much as digits as its factorization.

28949815733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 59.

The spelling of 28949815733 in words is "twenty-eight billion, nine hundred forty-nine million, eight hundred fifteen thousand, seven hundred thirty-three".