6121181830 has 16 divisors (see below), whose sum is σ = 11019408480. Its totient is φ = 2448188032.

The previous prime is 6121181809. The next prime is 6121181831. The reversal of 6121181830 is 381811216.

It is a junction number, because it is equal to n+sod(n) for n = 6121181792 and 6121181801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121181831) 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 7 ways as a sum of consecutive naturals, for example, 69486 + ... + 130654.

It is an arithmetic number, because the mean of its divisors is an integer number (688713030).

Almost surely, 2^6121181830 is an apocalyptic number.

6121181830 is a deficient number, since it is larger than the sum of its proper divisors (4898226650).

6121181830 is a wasteful number, since it uses less digits than its factorization.

6121181830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71183.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 6121181830 is about 78237.9820164094. The cubic root of 6121181830 is about 1829.2725895551.

The spelling of 6121181830 in words is "six billion, one hundred twenty-one million, one hundred eighty-one thousand, eight hundred thirty".