6111321912 has 128 divisors (see below), whose sum is σ = 17431848000. Its totient is φ = 1982638080.

The previous prime is 6111321901. The next prime is 6111321919. The reversal of 6111321912 is 2191231116.

It is a happy number.

6111321912 is a `hidden beast` number, since 611 + 1 + 32 + 1 + 9 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6111321919) 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 31 ways as a sum of consecutive naturals, for example, 7164078 + ... + 7164930.

Almost surely, 2^6111321912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6111321912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8715924000).

6111321912 is an abundant number, since it is smaller than the sum of its proper divisors (11320526088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6111321912 is a wasteful number, since it uses less digits than its factorization.

6111321912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1708 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 6111321912 is about 78174.9442724458. The cubic root of 6111321912 is about 1828.2898724255.

The spelling of 6111321912 in words is "six billion, one hundred eleven million, three hundred twenty-one thousand, nine hundred twelve".