68458132553 has 2 divisors, whose sum is σ = 68458132554. Its totient is φ = 68458132552.

The previous prime is 68458132493. The next prime is 68458132559. The reversal of 68458132553 is 35523185486.

68458132553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68449210384 + 8922169 = 261628^2 + 2987^2 .

It is a cyclic number.

It is not a de Polignac number, because 68458132553 - 2⁸ = 68458132297 is a prime.

It is not a weakly prime, because it can be changed into another prime (68458132559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34229066276 + 34229066277.

It is an arithmetic number, because the mean of its divisors is an integer number (34229066277).

Almost surely, 2^68458132553 is an apocalyptic number.

It is an amenable number.

68458132553 is a deficient number, since it is larger than the sum of its proper divisors (1).

68458132553 is an equidigital number, since it uses as much as digits as its factorization.

68458132553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 50.

The spelling of 68458132553 in words is "sixty-eight billion, four hundred fifty-eight million, one hundred thirty-two thousand, five hundred fifty-three".