406251215343 has 12 divisors (see below), whose sum is σ = 608540915528. Its totient is φ = 270834143400.

The previous prime is 406251215339. The next prime is 406251215351. The reversal of 406251215343 is 343512152604.

406251215343 is a `hidden beast` number, since 4 + 0 + 625 + 1 + 21 + 5 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 406251215343 - 2² = 406251215339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406251215298 and 406251215307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406251219343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835907608 + ... + 835908093.

Almost surely, 2^406251215343 is an apocalyptic number.

406251215343 is a deficient number, since it is larger than the sum of its proper divisors (202289700185).

406251215343 is an equidigital number, since it uses as much as digits as its factorization.

406251215343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671815716 (or 1671815704 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 406251215343 its reverse (343512152604), we get a palindrome (749763367947).

The spelling of 406251215343 in words is "four hundred six billion, two hundred fifty-one million, two hundred fifteen thousand, three hundred forty-three".