9727340672731 has 16 divisors (see below), whose sum is σ = 11274254051040. Its totient is φ = 8307345070080.

The previous prime is 9727340672729. The next prime is 9727340672741. The reversal of 9727340672731 is 1372760437279.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9727340672731 - 2¹ = 9727340672729 is a prime.

It is a super-2 number, since 2×9727340672731² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9727340672701) 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, 412058886 + ... + 412082491.

It is an arithmetic number, because the mean of its divisors is an integer number (704640878190).

Almost surely, 2^{9727340672731} is an apocalyptic number.

9727340672731 is a deficient number, since it is larger than the sum of its proper divisors (1546913378309).

9727340672731 is a wasteful number, since it uses less digits than its factorization.

9727340672731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824141454.

The product of its (nonzero) digits is 18670176, while the sum is 58.

The spelling of 9727340672731 in words is "nine trillion, seven hundred twenty-seven billion, three hundred forty million, six hundred seventy-two thousand, seven hundred thirty-one".