7638020812212 has 96 divisors (see below), whose sum is σ = 20720799805440. Its totient is φ = 2144524498560.

The previous prime is 7638020812129. The next prime is 7638020812237. The reversal of 7638020812212 is 2122180208367.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13434762 + ... + 13991742.

It is an arithmetic number, because the mean of its divisors is an integer number (215841664640).

Almost surely, 2^{7638020812212} 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 7638020812212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10360399902720).

7638020812212 is an abundant number, since it is smaller than the sum of its proper divisors (13082778993228).

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

7638020812212 is a wasteful number, since it uses less digits than its factorization.

7638020812212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559821 (or 559819 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 7638020812212 in words is "seven trillion, six hundred thirty-eight billion, twenty million, eight hundred twelve thousand, two hundred twelve".