405423050051 has 4 divisors (see below), whose sum is σ = 409359196272. Its totient is φ = 401486903832.

The previous prime is 405423049987. The next prime is 405423050113. The reversal of 405423050051 is 150050324504.

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 405423050051 - 2⁶ = 405423049987 is a prime.

It is a super-2 number, since 2×405423050051² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405423049996 and 405423050023.

It is not an unprimeable number, because it can be changed into a prime (405423050651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968072956 + ... + 1968073161.

It is an arithmetic number, because the mean of its divisors is an integer number (102339799068).

Almost surely, 2^405423050051 is an apocalyptic number.

405423050051 is a deficient number, since it is larger than the sum of its proper divisors (3936146221).

405423050051 is a wasteful number, since it uses less digits than its factorization.

405423050051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936146220.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 405423050051 its reverse (150050324504), we get a palindrome (555473374555).

The spelling of 405423050051 in words is "four hundred five billion, four hundred twenty-three million, fifty thousand, fifty-one".