28829385394553 has 2 divisors, whose sum is σ = 28829385394554. Its totient is φ = 28829385394552.

The previous prime is 28829385394517. The next prime is 28829385394597. The reversal of 28829385394553 is 35549358392882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27691980208489 + 1137405186064 = 5262317^2 + 1066492^2 .

It is a cyclic number.

It is not a de Polignac number, because 28829385394553 - 2⁸ = 28829385394297 is a prime.

It is a super-2 number, since 2×28829385394553² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28829385394853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14414692697276 + 14414692697277.

It is an arithmetic number, because the mean of its divisors is an integer number (14414692697277).

Almost surely, 2^{28829385394553} is an apocalyptic number.

It is an amenable number.

28829385394553 is a deficient number, since it is larger than the sum of its proper divisors (1).

28829385394553 is an equidigital number, since it uses as much as digits as its factorization.

28829385394553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488000, while the sum is 74.

The spelling of 28829385394553 in words is "twenty-eight trillion, eight hundred twenty-nine billion, three hundred eighty-five million, three hundred ninety-four thousand, five hundred fifty-three".