254506266691 has 2 divisors, whose sum is σ = 254506266692. Its totient is φ = 254506266690.

The previous prime is 254506266667. The next prime is 254506266737. The reversal of 254506266691 is 196662605452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254506266691 - 2⁵ = 254506266659 is a prime.

It is not a weakly prime, because it can be changed into another prime (254506266631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127253133345 + 127253133346.

It is an arithmetic number, because the mean of its divisors is an integer number (127253133346).

Almost surely, 2^254506266691 is an apocalyptic number.

254506266691 is a deficient number, since it is larger than the sum of its proper divisors (1).

254506266691 is an equidigital number, since it uses as much as digits as its factorization.

254506266691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 254506266691 in words is "two hundred fifty-four billion, five hundred six million, two hundred sixty-six thousand, six hundred ninety-one".