28857262141 has 2 divisors, whose sum is σ = 28857262142. Its totient is φ = 28857262140.

The previous prime is 28857262127. The next prime is 28857262193. The reversal of 28857262141 is 14126275882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19608400900 + 9248861241 = 140030^2 + 96171^2 .

It is a cyclic number.

It is not a de Polignac number, because 28857262141 - 2¹⁹ = 28856737853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28857262091 and 28857262100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28857262541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14428631070 + 14428631071.

It is an arithmetic number, because the mean of its divisors is an integer number (14428631071).

Almost surely, 2^28857262141 is an apocalyptic number.

It is an amenable number.

28857262141 is a deficient number, since it is larger than the sum of its proper divisors (1).

28857262141 is an equidigital number, since it uses as much as digits as its factorization.

28857262141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 46.

The spelling of 28857262141 in words is "twenty-eight billion, eight hundred fifty-seven million, two hundred sixty-two thousand, one hundred forty-one".