9725068961 has 4 divisors (see below), whose sum is σ = 9870219312. Its totient is φ = 9579918612.

The previous prime is 9725068919. The next prime is 9725068973. The reversal of 9725068961 is 1698605279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9725068961 - 2¹⁴ = 9725052577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9725068901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72575075 + ... + 72575208.

It is an arithmetic number, because the mean of its divisors is an integer number (2467554828).

Almost surely, 2^9725068961 is an apocalyptic number.

It is an amenable number.

9725068961 is a deficient number, since it is larger than the sum of its proper divisors (145150351).

9725068961 is a wasteful number, since it uses less digits than its factorization.

9725068961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145150350.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 9725068961 is about 98615.7642621097. The cubic root of 9725068961 is about 2134.5069008049.

The spelling of 9725068961 in words is "nine billion, seven hundred twenty-five million, sixty-eight thousand, nine hundred sixty-one".