8469555556401 has 48 divisors (see below), whose sum is σ = 12350365547520. Its totient is φ = 5592842743680.

The previous prime is 8469555556393. The next prime is 8469555556421. The reversal of 8469555556401 is 1046555559648.

8469555556401 is a `hidden beast` number, since 8 + 4 + 69 + 5 + 5 + 5 + 5 + 564 + 0 + 1 = 666.

It is not a de Polignac number, because 8469555556401 - 2³ = 8469555556393 is a prime.

It is a super-3 number, since 3×8469555556401³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8469555556421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1091574360 + ... + 1091582118.

It is an arithmetic number, because the mean of its divisors is an integer number (257299282240).

Almost surely, 2^{8469555556401} is an apocalyptic number.

It is an amenable number.

8469555556401 is a deficient number, since it is larger than the sum of its proper divisors (3880809991119).

8469555556401 is a wasteful number, since it uses less digits than its factorization.

8469555556401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526 (or 10523 counting only the distinct ones).

The product of its (nonzero) digits is 129600000, while the sum is 63.

The spelling of 8469555556401 in words is "eight trillion, four hundred sixty-nine billion, five hundred fifty-five million, five hundred fifty-six thousand, four hundred one".