405155240021435 has 16 divisors (see below), whose sum is σ = 495150638273280. Its totient is φ = 318164045290080.

The previous prime is 405155240021401. The next prime is 405155240021449. The reversal of 405155240021435 is 534120042551504.

It is a happy number.

It is not a de Polignac number, because 405155240021435 - 2²⁸ = 405154971585979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405155240021392 and 405155240021401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005221351 + ... + 1005624320.

It is an arithmetic number, because the mean of its divisors is an integer number (30946914892080).

Almost surely, 2^{405155240021435} is an apocalyptic number.

405155240021435 is a deficient number, since it is larger than the sum of its proper divisors (89995398251845).

405155240021435 is a wasteful number, since it uses less digits than its factorization.

405155240021435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010846418.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 405155240021435 its reverse (534120042551504), we get a palindrome (939275282572939).

The spelling of 405155240021435 in words is "four hundred five trillion, one hundred fifty-five billion, two hundred forty million, twenty-one thousand, four hundred thirty-five".