7831972216 has 32 divisors (see below), whose sum is σ = 16367130000. Its totient is φ = 3491652096.

The previous prime is 7831972193. The next prime is 7831972217. The reversal of 7831972216 is 6122791387.

It is a super-2 number, since 2×7831972216² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7831972217) 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, 1512891 + ... + 1518058.

Almost surely, 2^7831972216 is an apocalyptic number.

7831972216 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7831972216 is an abundant number, since it is smaller than the sum of its proper divisors (8535157784).

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

7831972216 is a wasteful number, since it uses less digits than its factorization.

7831972216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030991 (or 3030987 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 7831972216 is about 88498.4305849544. The cubic root of 7831972216 is about 1985.8984920806.

The spelling of 7831972216 in words is "seven billion, eight hundred thirty-one million, nine hundred seventy-two thousand, two hundred sixteen".