254098747691 has 2 divisors, whose sum is σ = 254098747692. Its totient is φ = 254098747690.

The previous prime is 254098747687. The next prime is 254098747711. The reversal of 254098747691 is 196747890452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254098747691 - 2² = 254098747687 is a prime.

It is not a weakly prime, because it can be changed into another prime (254098747391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127049373845 + 127049373846.

It is an arithmetic number, because the mean of its divisors is an integer number (127049373846).

Almost surely, 2^254098747691 is an apocalyptic number.

254098747691 is a deficient number, since it is larger than the sum of its proper divisors (1).

254098747691 is an equidigital number, since it uses as much as digits as its factorization.

254098747691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 254098747691 in words is "two hundred fifty-four billion, ninety-eight million, seven hundred forty-seven thousand, six hundred ninety-one".