254631695387 has 2 divisors, whose sum is σ = 254631695388. Its totient is φ = 254631695386.

The previous prime is 254631695327. The next prime is 254631695389. The reversal of 254631695387 is 783596136452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254631695387 - 2³² = 250336728091 is a prime.

Together with 254631695389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254631695389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127315847693 + 127315847694.

It is an arithmetic number, because the mean of its divisors is an integer number (127315847694).

Almost surely, 2^254631695387 is an apocalyptic number.

254631695387 is a deficient number, since it is larger than the sum of its proper divisors (1).

254631695387 is an equidigital number, since it uses as much as digits as its factorization.

254631695387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 59.

The spelling of 254631695387 in words is "two hundred fifty-four billion, six hundred thirty-one million, six hundred ninety-five thousand, three hundred eighty-seven".