7498861944025 has 9 divisors (see below), whose sum is σ = 9298605788733. Its totient is φ = 5999078601600.

The previous prime is 7498861943917. The next prime is 7498861944029. The reversal of 7498861944025 is 5204491688947.

The square root of 7498861944025 is 2738405.

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 2525801382729 + 4973060561296 = 1589277^2 + 2230036^2 .

It is not a de Polignac number, because 7498861944025 - 2²⁷ = 7498727726297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7498861944029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13418185 + ... + 13965865.

Almost surely, 2^{7498861944025} is an apocalyptic number.

7498861944025 is the 2738405-th square number.

7498861944025 is the 1369203-rd centered octagonal number.

It is an amenable number.

7498861944025 is a deficient number, since it is larger than the sum of its proper divisors (1799743844708).

7498861944025 is an frugal number, since it uses more digits than its factorization.

7498861944025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095372 (or 547686 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 67.

The spelling of 7498861944025 in words is "seven trillion, four hundred ninety-eight billion, eight hundred sixty-one million, nine hundred forty-four thousand, twenty-five".