254203421519969 has 2 divisors, whose sum is σ = 254203421519970. Its totient is φ = 254203421519968.

The previous prime is 254203421519951. The next prime is 254203421520011. The reversal of 254203421519969 is 969915124302452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207487085065744 + 46716336454225 = 14404412^2 + 6834935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254203421519969 is a prime.

It is a super-2 number, since 2×254203421519969² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (254203421519669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127101710759984 + 127101710759985.

It is an arithmetic number, because the mean of its divisors is an integer number (127101710759985).

Almost surely, 2^{254203421519969} is an apocalyptic number.

It is an amenable number.

254203421519969 is a deficient number, since it is larger than the sum of its proper divisors (1).

254203421519969 is an equidigital number, since it uses as much as digits as its factorization.

254203421519969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 254203421519969 in words is "two hundred fifty-four trillion, two hundred three billion, four hundred twenty-one million, five hundred nineteen thousand, nine hundred sixty-nine".