254617042663 has 2 divisors, whose sum is σ = 254617042664. Its totient is φ = 254617042662.

The previous prime is 254617042651. The next prime is 254617042697. The reversal of 254617042663 is 366240716452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254617042663 - 2²¹ = 254614945511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254617042363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127308521331 + 127308521332.

It is an arithmetic number, because the mean of its divisors is an integer number (127308521332).

Almost surely, 2^254617042663 is an apocalyptic number.

254617042663 is a deficient number, since it is larger than the sum of its proper divisors (1).

254617042663 is an equidigital number, since it uses as much as digits as its factorization.

254617042663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 254617042663 in words is "two hundred fifty-four billion, six hundred seventeen million, forty-two thousand, six hundred sixty-three".