6118901989 has 4 divisors (see below), whose sum is σ = 6133436620. Its totient is φ = 6104367360.

The previous prime is 6118901947. The next prime is 6118902007. The reversal of 6118901989 is 9891098116.

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 1658932900 + 4459969089 = 40730^2 + 66783^2 .

It is a cyclic number.

It is not a de Polignac number, because 6118901989 - 2¹⁵ = 6118869221 is a prime.

It is a super-2 number, since 2×6118901989² = 74881923101976312242, which 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 (6118901909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7266684 + ... + 7267525.

It is an arithmetic number, because the mean of its divisors is an integer number (1533359155).

Almost surely, 2^6118901989 is an apocalyptic number.

It is an amenable number.

6118901989 is a deficient number, since it is larger than the sum of its proper divisors (14534631).

6118901989 is a wasteful number, since it uses less digits than its factorization.

6118901989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534630.

The product of its (nonzero) digits is 279936, while the sum is 52.

The square root of 6118901989 is about 78223.4107476783. The cubic root of 6118901989 is about 1829.0454564820.

The spelling of 6118901989 in words is "six billion, one hundred eighteen million, nine hundred one thousand, nine hundred eighty-nine".