6121916858 has 8 divisors (see below), whose sum is σ = 9272029728. Its totient is φ = 3031240284.

The previous prime is 6121916833. The next prime is 6121916909. The reversal of 6121916858 is 8586191216.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 14858816 + ... + 14859227.

It is an arithmetic number, because the mean of its divisors is an integer number (1159003716).

Almost surely, 2^6121916858 is an apocalyptic number.

6121916858 is a deficient number, since it is larger than the sum of its proper divisors (3150112870).

6121916858 is a wasteful number, since it uses less digits than its factorization.

6121916858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29718148.

The product of its digits is 207360, while the sum is 47.

The square root of 6121916858 is about 78242.6792613852. The cubic root of 6121916858 is about 1829.3458059587.

The spelling of 6121916858 in words is "six billion, one hundred twenty-one million, nine hundred sixteen thousand, eight hundred fifty-eight".