28757347429 has 2 divisors, whose sum is σ = 28757347430. Its totient is φ = 28757347428.

The previous prime is 28757347369. The next prime is 28757347453. The reversal of 28757347429 is 92474375782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26546184900 + 2211162529 = 162930^2 + 47023^2 .

It is a cyclic number.

It is not a de Polignac number, because 28757347429 - 2¹¹ = 28757345381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28757341429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14378673714 + 14378673715.

It is an arithmetic number, because the mean of its divisors is an integer number (14378673715).

Almost surely, 2^28757347429 is an apocalyptic number.

It is an amenable number.

28757347429 is a deficient number, since it is larger than the sum of its proper divisors (1).

28757347429 is an equidigital number, since it uses as much as digits as its factorization.

28757347429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 58.

The spelling of 28757347429 in words is "twenty-eight billion, seven hundred fifty-seven million, three hundred forty-seven thousand, four hundred twenty-nine".