405479570523 has 4 divisors (see below), whose sum is σ = 540639427368. Its totient is φ = 270319713680.

The previous prime is 405479570521. The next prime is 405479570539. The reversal of 405479570523 is 325075974504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405479570523 - 2¹ = 405479570521 is a prime.

It is a super-2 number, since 2×405479570523² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405479570521) 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 3 ways as a sum of consecutive naturals, for example, 67579928418 + ... + 67579928423.

It is an arithmetic number, because the mean of its divisors is an integer number (135159856842).

Almost surely, 2^405479570523 is an apocalyptic number.

405479570523 is a deficient number, since it is larger than the sum of its proper divisors (135159856845).

405479570523 is a wasteful number, since it uses less digits than its factorization.

405479570523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135159856844.

The product of its (nonzero) digits is 5292000, while the sum is 51.

The spelling of 405479570523 in words is "four hundred five billion, four hundred seventy-nine million, five hundred seventy thousand, five hundred twenty-three".