28571083157 has 2 divisors, whose sum is σ = 28571083158. Its totient is φ = 28571083156.

The previous prime is 28571083129. The next prime is 28571083181. The reversal of 28571083157 is 75138017582.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21196739281 + 7374343876 = 145591^2 + 85874^2 .

It is a cyclic number.

It is not a de Polignac number, because 28571083157 - 2¹⁴ = 28571066773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28571083657) 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, 14285541578 + 14285541579.

It is an arithmetic number, because the mean of its divisors is an integer number (14285541579).

Almost surely, 2^28571083157 is an apocalyptic number.

It is an amenable number.

28571083157 is a deficient number, since it is larger than the sum of its proper divisors (1).

28571083157 is an equidigital number, since it uses as much as digits as its factorization.

28571083157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 28571083157 in words is "twenty-eight billion, five hundred seventy-one million, eighty-three thousand, one hundred fifty-seven".