9910735861 has 4 divisors (see below), whose sum is σ = 10673100172. Its totient is φ = 9148371552.

The previous prime is 9910735843. The next prime is 9910735951. The reversal of 9910735861 is 1685370199.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5629650961 + 4281084900 = 75031^2 + 65430^2 .

It is a cyclic number.

It is not a de Polignac number, because 9910735861 - 2⁷ = 9910735733 is a prime.

It is a super-2 number, since 2×9910735861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9910735831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381182136 + ... + 381182161.

It is an arithmetic number, because the mean of its divisors is an integer number (2668275043).

Almost surely, 2^9910735861 is an apocalyptic number.

It is an amenable number.

9910735861 is a deficient number, since it is larger than the sum of its proper divisors (762364311).

9910735861 is a wasteful number, since it uses less digits than its factorization.

9910735861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762364310.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 9910735861 is about 99552.6788238267. The cubic root of 9910735861 is about 2148.0050621509.

The spelling of 9910735861 in words is "nine billion, nine hundred ten million, seven hundred thirty-five thousand, eight hundred sixty-one".