8408400884408 has 32 divisors (see below), whose sum is σ = 18018095414400. Its totient is φ = 3603581675232.

The previous prime is 8408400884399. The next prime is 8408400884413. The reversal of 8408400884408 is 8044880048048.

It is a super-3 number, since 3×8408400884408³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19305503 + ... + 19736241.

It is an arithmetic number, because the mean of its divisors is an integer number (563065481700).

Almost surely, 2^{8408400884408} is an apocalyptic number.

It is an amenable number.

8408400884408 is an abundant number, since it is smaller than the sum of its proper divisors (9609694529992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8408400884408 is a wasteful number, since it uses less digits than its factorization.

8408400884408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779339 (or 779335 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 56.

The spelling of 8408400884408 in words is "eight trillion, four hundred eight billion, four hundred million, eight hundred eighty-four thousand, four hundred eight".