9871061761 has 8 divisors (see below), whose sum is σ = 11059470144. Its totient is φ = 8731159920.

The previous prime is 9871061741. The next prime is 9871061779. The reversal of 9871061761 is 1671601789.

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 9871061761 - 2²³ = 9862673153 is a prime.

It is a super-3 number, since 3×9871061761³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9871061741) 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, 12126205 + ... + 12127018.

It is an arithmetic number, because the mean of its divisors is an integer number (1382433768).

Almost surely, 2^9871061761 is an apocalyptic number.

It is an amenable number.

9871061761 is a deficient number, since it is larger than the sum of its proper divisors (1188408383).

9871061761 is a wasteful number, since it uses less digits than its factorization.

9871061761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24253271.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 9871061761 is about 99353.2171648206. The cubic root of 9871061761 is about 2145.1349712850.

The spelling of 9871061761 in words is "nine billion, eight hundred seventy-one million, sixty-one thousand, seven hundred sixty-one".