9661748404831 has 8 divisors (see below), whose sum is σ = 9673631474400. Its totient is φ = 9649865887200.

The previous prime is 9661748404817. The next prime is 9661748404853. The reversal of 9661748404831 is 1384048471669.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9661748404831 - 2⁵ = 9661748404799 is a prime.

It is a super-2 number, since 2×9661748404831² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9661748404831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661748404631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43246110 + ... + 43468948.

It is an arithmetic number, because the mean of its divisors is an integer number (1209203934300).

Almost surely, 2^{9661748404831} is an apocalyptic number.

9661748404831 is a deficient number, since it is larger than the sum of its proper divisors (11883069569).

9661748404831 is a wasteful number, since it uses less digits than its factorization.

9661748404831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275969.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 9661748404831 in words is "nine trillion, six hundred sixty-one billion, seven hundred forty-eight million, four hundred four thousand, eight hundred thirty-one".