7478631021224 has 192 divisors, whose sum is σ = 16495100496000. Its totient is φ = 3168497868800.

The previous prime is 7478631021223. The next prime is 7478631021241. The reversal of 7478631021224 is 4221201368747.

It is a super-2 number, since 2×7478631021224² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7478631021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 848009087 + ... + 848017905.

It is an arithmetic number, because the mean of its divisors is an integer number (85911981750).

Almost surely, 2^{7478631021224} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7478631021224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8247550248000).

7478631021224 is an abundant number, since it is smaller than the sum of its proper divisors (9016469474776).

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

7478631021224 is a wasteful number, since it uses less digits than its factorization.

7478631021224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840 (or 9825 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 7478631021224 in words is "seven trillion, four hundred seventy-eight billion, six hundred thirty-one million, twenty-one thousand, two hundred twenty-four".