254042040403215 has 24 divisors (see below), whose sum is σ = 440369332799760. Its totient is φ = 135479920184064.

The previous prime is 254042040403051. The next prime is 254042040403237. The reversal of 254042040403215 is 512304040240452.

254042040403215 is a `hidden beast` number, since 2 + 5 + 40 + 4 + 204 + 0 + 403 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 254042040403215 - 2¹¹ = 254042040401167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254042040403215.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 190328202 + ... + 191658311.

It is an arithmetic number, because the mean of its divisors is an integer number (18348722199990).

Almost surely, 2^{254042040403215} is an apocalyptic number.

254042040403215 is a deficient number, since it is larger than the sum of its proper divisors (186327292396545).

254042040403215 is a wasteful number, since it uses less digits than its factorization.

254042040403215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382001303 (or 382001300 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 254042040403215 its reverse (512304040240452), we get a palindrome (766346080643667).

The spelling of 254042040403215 in words is "two hundred fifty-four trillion, forty-two billion, forty million, four hundred three thousand, two hundred fifteen".