405431426523316 has 24 divisors (see below), whose sum is σ = 751307835027456. Its totient is φ = 190774180026240.

The previous prime is 405431426523313. The next prime is 405431426523337. The reversal of 405431426523316 is 613325624134504.

It is a super-2 number, since 2×405431426523316² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 405431426523316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405431426523313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266102196 + ... + 267621451.

It is an arithmetic number, because the mean of its divisors is an integer number (31304493126144).

Almost surely, 2^{405431426523316} is an apocalyptic number.

It is an amenable number.

405431426523316 is a deficient number, since it is larger than the sum of its proper divisors (345876408504140).

405431426523316 is a wasteful number, since it uses less digits than its factorization.

405431426523316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533734839 (or 533734837 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 405431426523316 in words is "four hundred five trillion, four hundred thirty-one billion, four hundred twenty-six million, five hundred twenty-three thousand, three hundred sixteen".