405456814081 has 12 divisors (see below), whose sum is σ = 445891963216. Its totient is φ = 368411380920.

The previous prime is 405456814073. The next prime is 405456814097. The reversal of 405456814081 is 180418654504.

It is not a de Polignac number, because 405456814081 - 2³ = 405456814073 is a prime.

It is a super-2 number, since 2×405456814081² (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 (405456814181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602775 + ... + 1083628.

Almost surely, 2^405456814081 is an apocalyptic number.

It is an amenable number.

405456814081 is a deficient number, since it is larger than the sum of its proper divisors (40435149135).

405456814081 is a wasteful number, since it uses less digits than its factorization.

405456814081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688412 (or 1688401 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 405456814081 in words is "four hundred five billion, four hundred fifty-six million, eight hundred fourteen thousand, eighty-one".