693784725625 has 10 divisors (see below), whose sum is σ = 866953393922. Its totient is φ = 555027780000.

The previous prime is 693784725607. The next prime is 693784725649. The reversal of 693784725625 is 526527487396.

It can be written as a sum of positive squares in 5 ways, for example, as 86420124729 + 607364600896 = 293973^2 + 779336^2 .

It is not a de Polignac number, because 693784725625 - 2¹⁷ = 693784594553 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 (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 555027156 + ... + 555028405.

Almost surely, 2^693784725625 is an apocalyptic number.

It is an amenable number.

693784725625 is a deficient number, since it is larger than the sum of its proper divisors (173168668297).

693784725625 is an equidigital number, since it uses as much as digits as its factorization.

693784725625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110055581 (or 1110055566 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 64.

The spelling of 693784725625 in words is "six hundred ninety-three billion, seven hundred eighty-four million, seven hundred twenty-five thousand, six hundred twenty-five".