254406458393 has 2 divisors, whose sum is σ = 254406458394. Its totient is φ = 254406458392.

The previous prime is 254406458363. The next prime is 254406458401. The reversal of 254406458393 is 393854604452.

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., 147968700889 + 106437757504 = 384667^2 + 326248^2 .

It is a cyclic number.

It is not a de Polignac number, because 254406458393 - 2¹⁴ = 254406442009 is a prime.

It is not a weakly prime, because it can be changed into another prime (254406458363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127203229196 + 127203229197.

It is an arithmetic number, because the mean of its divisors is an integer number (127203229197).

Almost surely, 2^254406458393 is an apocalyptic number.

It is an amenable number.

254406458393 is a deficient number, since it is larger than the sum of its proper divisors (1).

254406458393 is an equidigital number, since it uses as much as digits as its factorization.

254406458393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 254406458393 in words is "two hundred fifty-four billion, four hundred six million, four hundred fifty-eight thousand, three hundred ninety-three".