784650498025 has 81 divisors (see below), whose sum is σ = 1039829381773. Its totient is φ = 587324147200.

The previous prime is 784650498019. The next prime is 784650498091. The reversal of 784650498025 is 520894056487.

The square root of 784650498025 is 885805.

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

It can be written as a sum of positive squares in 40 ways, for example, as 150391166809 + 634259331216 = 387803^2 + 796404^2 .

It is not a de Polignac number, because 784650498025 - 2³⁵ = 750290759657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 5266110651 + ... + 5266110799.

Almost surely, 2^784650498025 is an apocalyptic number.

784650498025 is the 885805-th square number.

784650498025 is the 442903-rd centered octagonal number.

It is an amenable number.

784650498025 is a deficient number, since it is larger than the sum of its proper divisors (255178883748).

784650498025 is an equidigital number, since it uses as much as digits as its factorization.

784650498025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 784650498025 in words is "seven hundred eighty-four billion, six hundred fifty million, four hundred ninety-eight thousand, twenty-five".