254469718109 has 2 divisors, whose sum is σ = 254469718110. Its totient is φ = 254469718108.

The previous prime is 254469718079. The next prime is 254469718141. The reversal of 254469718109 is 901817964452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215646926884 + 38822791225 = 464378^2 + 197035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254469718109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254469718169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127234859054 + 127234859055.

It is an arithmetic number, because the mean of its divisors is an integer number (127234859055).

Almost surely, 2^254469718109 is an apocalyptic number.

It is an amenable number.

254469718109 is a deficient number, since it is larger than the sum of its proper divisors (1).

254469718109 is an equidigital number, since it uses as much as digits as its factorization.

254469718109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 254469718109 in words is "two hundred fifty-four billion, four hundred sixty-nine million, seven hundred eighteen thousand, one hundred nine".