9769897725 has 48 divisors (see below), whose sum is σ = 19097051520. Its totient is φ = 4312224000.

The previous prime is 9769897691. The next prime is 9769897757. The reversal of 9769897725 is 5277989679.

It is not a de Polignac number, because 9769897725 - 2¹³ = 9769889533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9769897725.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 305626 + ... + 336075.

It is an arithmetic number, because the mean of its divisors is an integer number (397855240).

Almost surely, 2^9769897725 is an apocalyptic number.

It is an amenable number.

9769897725 is a deficient number, since it is larger than the sum of its proper divisors (9327153795).

9769897725 is a wasteful number, since it uses less digits than its factorization.

9769897725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641750 (or 641745 counting only the distinct ones).

The product of its digits is 120022560, while the sum is 69.

The square root of 9769897725 is about 98842.7929846178. The cubic root of 9769897725 is about 2137.7816215240.

The spelling of 9769897725 in words is "nine billion, seven hundred sixty-nine million, eight hundred ninety-seven thousand, seven hundred twenty-five".