254002409247 has 16 divisors (see below), whose sum is σ = 358611805440. Its totient is φ = 159365096832.

The previous prime is 254002409201. The next prime is 254002409261. The reversal of 254002409247 is 742904200452.

It is not a de Polignac number, because 254002409247 - 2¹⁰ = 254002408223 is a prime.

It is a super-2 number, since 2×254002409247² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254002409147) 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 in 15 ways as a sum of consecutive naturals, for example, 842508 + ... + 1103550.

It is an arithmetic number, because the mean of its divisors is an integer number (22413237840).

Almost surely, 2^254002409247 is an apocalyptic number.

254002409247 is a deficient number, since it is larger than the sum of its proper divisors (104609396193).

254002409247 is a wasteful number, since it uses less digits than its factorization.

254002409247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280142.

The product of its (nonzero) digits is 161280, while the sum is 39.

Adding to 254002409247 its reverse (742904200452), we get a palindrome (996906609699).

The spelling of 254002409247 in words is "two hundred fifty-four billion, two million, four hundred nine thousand, two hundred forty-seven".