254240167641643 has 2 divisors, whose sum is σ = 254240167641644. Its totient is φ = 254240167641642.

The previous prime is 254240167641529. The next prime is 254240167641667. The reversal of 254240167641643 is 346146761042452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254240167641643 - 2²⁹ = 254239630770731 is a prime.

It is not a weakly prime, because it can be changed into another prime (254240167641673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127120083820821 + 127120083820822.

It is an arithmetic number, because the mean of its divisors is an integer number (127120083820822).

Almost surely, 2^{254240167641643} is an apocalyptic number.

254240167641643 is a deficient number, since it is larger than the sum of its proper divisors (1).

254240167641643 is an equidigital number, since it uses as much as digits as its factorization.

254240167641643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23224320, while the sum is 55.

The spelling of 254240167641643 in words is "two hundred fifty-four trillion, two hundred forty billion, one hundred sixty-seven million, six hundred forty-one thousand, six hundred forty-three".