258136553447 has 2 divisors, whose sum is σ = 258136553448. Its totient is φ = 258136553446.

The previous prime is 258136553413. The next prime is 258136553489. The reversal of 258136553447 is 744355631852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258136553447 - 2³⁰ = 257062811623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258136553497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129068276723 + 129068276724.

It is an arithmetic number, because the mean of its divisors is an integer number (129068276724).

Almost surely, 2^258136553447 is an apocalyptic number.

258136553447 is a deficient number, since it is larger than the sum of its proper divisors (1).

258136553447 is an equidigital number, since it uses as much as digits as its factorization.

258136553447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 53.

The spelling of 258136553447 in words is "two hundred fifty-eight billion, one hundred thirty-six million, five hundred fifty-three thousand, four hundred forty-seven".