28710298501 has 2 divisors, whose sum is σ = 28710298502. Its totient is φ = 28710298500.

The previous prime is 28710298493. The next prime is 28710298537. The reversal of 28710298501 is 10589201782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19916547876 + 8793750625 = 141126^2 + 93775^2 .

It is a cyclic number.

It is not a de Polignac number, because 28710298501 - 2³ = 28710298493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28710295501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14355149250 + 14355149251.

It is an arithmetic number, because the mean of its divisors is an integer number (14355149251).

Almost surely, 2^28710298501 is an apocalyptic number.

It is an amenable number.

28710298501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28710298501 is an equidigital number, since it uses as much as digits as its factorization.

28710298501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 28710298501 in words is "twenty-eight billion, seven hundred ten million, two hundred ninety-eight thousand, five hundred one".