7478320422125 has 24 divisors (see below), whose sum is σ = 10856689836408. Its totient is φ = 5127991142400.

The previous prime is 7478320422019. The next prime is 7478320422143. The reversal of 7478320422125 is 5212240238747.

It can be written as a sum of positive squares in 4 ways, for example, as 24120885481 + 7454199536644 = 155309^2 + 2730238^2 .

It is not a de Polignac number, because 7478320422125 - 2²⁴ = 7478303644909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7478320422125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610469012 + ... + 610481261.

It is an arithmetic number, because the mean of its divisors is an integer number (452362076517).

Almost surely, 2^{7478320422125} is an apocalyptic number.

It is an amenable number.

7478320422125 is a deficient number, since it is larger than the sum of its proper divisors (3378369414283).

7478320422125 is a wasteful number, since it uses less digits than its factorization.

7478320422125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220950302 (or 1220950285 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 47.

The spelling of 7478320422125 in words is "seven trillion, four hundred seventy-eight billion, three hundred twenty million, four hundred twenty-two thousand, one hundred twenty-five".