7812769362216 has 512 divisors, whose sum is σ = 25178878771200. Its totient is φ = 1964909767680.

The previous prime is 7812769362197. The next prime is 7812769362217. The reversal of 7812769362216 is 6122639672187.

It is a super-2 number, since 2×7812769362216² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7812769362216.

It is not an unprimeable number, because it can be changed into a prime (7812769362217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2466929065 + ... + 2466932231.

It is an arithmetic number, because the mean of its divisors is an integer number (49177497600).

Almost surely, 2^{7812769362216} 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 7812769362216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12589439385600).

7812769362216 is an abundant number, since it is smaller than the sum of its proper divisors (17366109408984).

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

7812769362216 is a wasteful number, since it uses less digits than its factorization.

7812769362216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3745 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 60.

The spelling of 7812769362216 in words is "seven trillion, eight hundred twelve billion, seven hundred sixty-nine million, three hundred sixty-two thousand, two hundred sixteen".