6189956888881 has 4 divisors (see below), whose sum is σ = 6203501652772. Its totient is φ = 6176412124992.

The previous prime is 6189956888879. The next prime is 6189956888909. The reversal of 6189956888881 is 1888886599816.

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 2605690066225 + 3584266822656 = 1614215^2 + 1893216^2 .

It is a cyclic number.

It is not a de Polignac number, because 6189956888881 - 2¹ = 6189956888879 is a prime.

It is a super-2 number, since 2×6189956888881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6189956888821) 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, 6772381260 + ... + 6772382173.

It is an arithmetic number, because the mean of its divisors is an integer number (1550875413193).

Almost surely, 2^{6189956888881} is an apocalyptic number.

It is an amenable number.

6189956888881 is a deficient number, since it is larger than the sum of its proper divisors (13544763891).

6189956888881 is a wasteful number, since it uses less digits than its factorization.

6189956888881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13544763890.

The product of its digits is 3822059520, while the sum is 85.

The spelling of 6189956888881 in words is "six trillion, one hundred eighty-nine billion, nine hundred fifty-six million, eight hundred eighty-eight thousand, eight hundred eighty-one".