7218672112 has 20 divisors (see below), whose sum is σ = 14468460120. Its totient is φ = 3484875968.

The previous prime is 7218672091. The next prime is 7218672113. The reversal of 7218672112 is 2112768127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7218672113) 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, 7778278 + ... + 7779205.

It is an arithmetic number, because the mean of its divisors is an integer number (723423006).

Almost surely, 2^7218672112 is an apocalyptic number.

It is an amenable number.

7218672112 is an abundant number, since it is smaller than the sum of its proper divisors (7249788008).

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

7218672112 is a wasteful number, since it uses less digits than its factorization.

7218672112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15557520 (or 15557514 counting only the distinct ones).

The product of its digits is 18816, while the sum is 37.

The square root of 7218672112 is about 84962.7689755931. The cubic root of 7218672112 is about 1932.6465621999.

The spelling of 7218672112 in words is "seven billion, two hundred eighteen million, six hundred seventy-two thousand, one hundred twelve".