9859731880441 has 27 divisors (see below), whose sum is σ = 10259657521263. Its totient is φ = 9475076167920.

The previous prime is 9859731880393. The next prime is 9859731880489. The reversal of 9859731880441 is 1440881379589.

The square root of 9859731880441 is 3140021.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (9859731880393) and next prime (9859731880489).

It can be written as a sum of positive squares in only one way, i.e., 8017794328041 + 1841937552400 = 2831571^2 + 1357180^2 .

It is not a de Polignac number, because 9859731880441 - 2¹¹ = 9859731878393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9859731880541) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19370789295 + ... + 19370789803.

Almost surely, 2^{9859731880441} is an apocalyptic number.

9859731880441 is the 3140021-st square number.

9859731880441 is the 1570011-st centered octagonal number.

It is an amenable number.

9859731880441 is a deficient number, since it is larger than the sum of its proper divisors (399925640822).

9859731880441 is an frugal number, since it uses more digits than its factorization.

9859731880441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 67.

The spelling of 9859731880441 in words is "nine trillion, eight hundred fifty-nine billion, seven hundred thirty-one million, eight hundred eighty thousand, four hundred forty-one".