405117618461 has 8 divisors (see below), whose sum is σ = 426595915200. Its totient is φ = 383654953440.

The previous prime is 405117618457. The next prime is 405117618481. The reversal of 405117618461 is 164816711504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 405117618461 - 2² = 405117618457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405117618481) 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 7 ways as a sum of consecutive naturals, for example, 3854705 + ... + 3958406.

It is an arithmetic number, because the mean of its divisors is an integer number (53324489400).

Almost surely, 2^405117618461 is an apocalyptic number.

It is an amenable number.

405117618461 is a deficient number, since it is larger than the sum of its proper divisors (21478296739).

405117618461 is a wasteful number, since it uses less digits than its factorization.

405117618461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815859.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 405117618461 in words is "four hundred five billion, one hundred seventeen million, six hundred eighteen thousand, four hundred sixty-one".