9651741945 has 16 divisors (see below), whose sum is σ = 15801922752. Its totient is φ = 5027883840.

The previous prime is 9651741943. The next prime is 9651741977. The reversal of 9651741945 is 5491471569.

It is a happy number.

It is not a de Polignac number, because 9651741945 - 2¹ = 9651741943 is a prime.

It is a super-2 number, since 2×9651741945² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9651741943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7481326 + ... + 7482615.

It is an arithmetic number, because the mean of its divisors is an integer number (987620172).

Almost surely, 2^9651741945 is an apocalyptic number.

It is an amenable number.

9651741945 is a deficient number, since it is larger than the sum of its proper divisors (6150180807).

9651741945 is a wasteful number, since it uses less digits than its factorization.

9651741945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14963992.

The product of its digits is 1360800, while the sum is 51.

The square root of 9651741945 is about 98243.2793884650. The cubic root of 9651741945 is about 2129.1286336387.

The spelling of 9651741945 in words is "nine billion, six hundred fifty-one million, seven hundred forty-one thousand, nine hundred forty-five".