7404378081824 has 48 divisors (see below), whose sum is σ = 15450099596568. Its totient is φ = 3480973258752.

The previous prime is 7404378081817. The next prime is 7404378081871. The reversal of 7404378081824 is 4281808734047.

It can be written as a sum of positive squares in 4 ways, for example, as 2868619690000 + 4535758391824 = 1693700^2 + 2129732^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7404378081824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6167087 + ... + 7269230.

Almost surely, 2^{7404378081824} is an apocalyptic number.

It is an amenable number.

7404378081824 is an abundant number, since it is smaller than the sum of its proper divisors (8045721514744).

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

7404378081824 is a wasteful number, since it uses less digits than its factorization.

7404378081824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13437357 (or 13437349 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 56.

The spelling of 7404378081824 in words is "seven trillion, four hundred four billion, three hundred seventy-eight million, eighty-one thousand, eight hundred twenty-four".