405531741431 has 4 divisors (see below), whose sum is σ = 407228527200. Its totient is φ = 403834955664.

The previous prime is 405531741367. The next prime is 405531741467. The reversal of 405531741431 is 134147135504.

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 405531741431 - 2⁶ = 405531741367 is a prime.

It is a super-2 number, since 2×405531741431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405531741331) 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, 848392526 + ... + 848393003.

It is an arithmetic number, because the mean of its divisors is an integer number (101807131800).

Almost surely, 2^405531741431 is an apocalyptic number.

405531741431 is a deficient number, since it is larger than the sum of its proper divisors (1696785769).

405531741431 is a wasteful number, since it uses less digits than its factorization.

405531741431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696785768.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 405531741431 its reverse (134147135504), we get a palindrome (539678876935).

The spelling of 405531741431 in words is "four hundred five billion, five hundred thirty-one million, seven hundred forty-one thousand, four hundred thirty-one".