406613873369 has 4 divisors (see below), whose sum is σ = 443578770960. Its totient is φ = 369648975780.

The previous prime is 406613873317. The next prime is 406613873429. The reversal of 406613873369 is 963378316604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406613873369 - 2¹⁶ = 406613807833 is a prime.

It is a super-2 number, since 2×406613873369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406613878369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18482448779 + ... + 18482448800.

It is an arithmetic number, because the mean of its divisors is an integer number (110894692740).

Almost surely, 2^406613873369 is an apocalyptic number.

It is an amenable number.

406613873369 is a deficient number, since it is larger than the sum of its proper divisors (36964897591).

406613873369 is a wasteful number, since it uses less digits than its factorization.

406613873369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36964897590.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 406613873369 in words is "four hundred six billion, six hundred thirteen million, eight hundred seventy-three thousand, three hundred sixty-nine".