254099191605953 has 2 divisors, whose sum is σ = 254099191605954. Its totient is φ = 254099191605952.

The previous prime is 254099191605907. The next prime is 254099191606009. The reversal of 254099191605953 is 359506191990452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159622580077489 + 94476611528464 = 12634183^2 + 9719908^2 .

It is a cyclic number.

It is not a de Polignac number, because 254099191605953 - 2²⁸ = 254098923170497 is a prime.

It is not a weakly prime, because it can be changed into another prime (254099191608953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127049595802976 + 127049595802977.

It is an arithmetic number, because the mean of its divisors is an integer number (127049595802977).

Almost surely, 2^{254099191605953} is an apocalyptic number.

It is an amenable number.

254099191605953 is a deficient number, since it is larger than the sum of its proper divisors (1).

254099191605953 is an equidigital number, since it uses as much as digits as its factorization.

254099191605953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098000, while the sum is 68.

The spelling of 254099191605953 in words is "two hundred fifty-four trillion, ninety-nine billion, one hundred ninety-one million, six hundred five thousand, nine hundred fifty-three".