7478065857025 has 12 divisors (see below), whose sum is σ = 9272836191100. Its totient is φ = 5982430409280.

The previous prime is 7478065857023. The next prime is 7478065857037. The reversal of 7478065857025 is 5207585608747.

It can be written as a sum of positive squares in 6 ways, for example, as 370957737969 + 7107108119056 = 609063^2 + 2665916^2 .

It is not a de Polignac number, because 7478065857025 - 2¹ = 7478065857023 is a prime.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7478065857023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10966771 + ... + 11628679.

Almost surely, 2^{7478065857025} is an apocalyptic number.

It is an amenable number.

7478065857025 is a deficient number, since it is larger than the sum of its proper divisors (1794770334075).

7478065857025 is a wasteful number, since it uses less digits than its factorization.

7478065857025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113828 (or 1113823 counting only the distinct ones).

The product of its (nonzero) digits is 131712000, while the sum is 64.

The spelling of 7478065857025 in words is "seven trillion, four hundred seventy-eight billion, sixty-five million, eight hundred fifty-seven thousand, twenty-five".