7898882145025 has 27 divisors (see below), whose sum is σ = 9822205481193. Its totient is φ = 6301354629600.

The previous prime is 7898882144917. The next prime is 7898882145061. The reversal of 7898882145025 is 5205412888987.

The square root of 7898882145025 is 2810495.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 465974160129 + 7432907984896 = 682623^2 + 2726336^2 .

It is not a de Polignac number, because 7898882145025 - 2⁷ = 7898882144897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 7602388456 + ... + 7602389494.

Almost surely, 2^{7898882145025} is an apocalyptic number.

7898882145025 is the 2810495-th square number.

7898882145025 is the 1405248-th centered octagonal number.

It is an amenable number.

7898882145025 is a deficient number, since it is larger than the sum of its proper divisors (1923323336168).

7898882145025 is an frugal number, since it uses more digits than its factorization.

7898882145025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 67.

The spelling of 7898882145025 in words is "seven trillion, eight hundred ninety-eight billion, eight hundred eighty-two million, one hundred forty-five thousand, twenty-five".