8400408008404 has 24 divisors (see below), whose sum is σ = 14876122663080. Its totient is φ = 4150152213504.

The previous prime is 8400408008383. The next prime is 8400408008429. The reversal of 8400408008404 is 4048008040048.

It can be written as a sum of positive squares in 4 ways, for example, as 583619602500 + 7816788405904 = 763950^2 + 2795852^2 .

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, 7602709 + ... + 8637244.

It is an arithmetic number, because the mean of its divisors is an integer number (619838444295).

Almost surely, 2^{8400408008404} is an apocalyptic number.

It is an amenable number.

8400408008404 is a deficient number, since it is larger than the sum of its proper divisors (6475714654676).

8400408008404 is a wasteful number, since it uses less digits than its factorization.

8400408008404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16241499 (or 16241497 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 8400408008404 in words is "eight trillion, four hundred billion, four hundred eight million, eight thousand, four hundred four".