9691380025 has 36 divisors (see below), whose sum is σ = 12395073852. Its totient is φ = 7516149760.

The previous prime is 9691380019. The next prime is 9691380047. The reversal of 9691380025 is 5200831969.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4008029481 + 5683350544 = 63309^2 + 75388^2 .

It is not a de Polignac number, because 9691380025 - 2²¹ = 9689282873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6239649 + ... + 6241201.

It is an arithmetic number, because the mean of its divisors is an integer number (344307607).

Almost surely, 2^9691380025 is an apocalyptic number.

It is an amenable number.

9691380025 is a deficient number, since it is larger than the sum of its proper divisors (2703693827).

9691380025 is a wasteful number, since it uses less digits than its factorization.

9691380025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 9691380025 is about 98444.8069986426. The cubic root of 9691380025 is about 2132.0393103860.

The spelling of 9691380025 in words is "nine billion, six hundred ninety-one million, three hundred eighty thousand, twenty-five".