7215226425440 has 96 divisors (see below), whose sum is σ = 18605939617440. Its totient is φ = 2622260736000.

The previous prime is 7215226425413. The next prime is 7215226425487. The reversal of 7215226425440 is 445246225127.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 7215226425391 and 7215226425400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031626 + ... + 4307894.

It is an arithmetic number, because the mean of its divisors is an integer number (193811871015).

Almost surely, 2^{7215226425440} 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 7215226425440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9302969808720).

7215226425440 is an abundant number, since it is smaller than the sum of its proper divisors (11390713192000).

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

7215226425440 is a wasteful number, since it uses less digits than its factorization.

7215226425440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278096 (or 2278088 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

The spelling of 7215226425440 in words is "seven trillion, two hundred fifteen billion, two hundred twenty-six million, four hundred twenty-five thousand, four hundred forty".