254865623433397 has 2 divisors, whose sum is σ = 254865623433398. Its totient is φ = 254865623433396.

The previous prime is 254865623433391. The next prime is 254865623433427. The reversal of 254865623433397 is 793334326568452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250133393147236 + 4732230286161 = 15815606^2 + 2175369^2 .

It is a cyclic number.

It is not a de Polignac number, because 254865623433397 - 2¹⁵ = 254865623400629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254865623433391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127432811716698 + 127432811716699.

It is an arithmetic number, because the mean of its divisors is an integer number (127432811716699).

Almost surely, 2^{254865623433397} is an apocalyptic number.

It is an amenable number.

254865623433397 is a deficient number, since it is larger than the sum of its proper divisors (1).

254865623433397 is an equidigital number, since it uses as much as digits as its factorization.

254865623433397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2351462400, while the sum is 70.

The spelling of 254865623433397 in words is "two hundred fifty-four trillion, eight hundred sixty-five billion, six hundred twenty-three million, four hundred thirty-three thousand, three hundred ninety-seven".