9465401638855 has 8 divisors (see below), whose sum is σ = 11665467965952. Its totient is φ = 7367663978208.

The previous prime is 9465401638853. The next prime is 9465401638871. The reversal of 9465401638855 is 5588361045649.

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 9465401638855 - 2¹ = 9465401638853 is a prime.

It is a super-3 number, since 3×9465401638855³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9465401638853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25582166407 + ... + 25582166776.

It is an arithmetic number, because the mean of its divisors is an integer number (1458183495744).

Almost surely, 2^{9465401638855} is an apocalyptic number.

9465401638855 is a deficient number, since it is larger than the sum of its proper divisors (2200066327097).

9465401638855 is a wasteful number, since it uses less digits than its factorization.

9465401638855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51164333225.

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 9465401638855 in words is "nine trillion, four hundred sixty-five billion, four hundred one million, six hundred thirty-eight thousand, eight hundred fifty-five".