7896890781208 has 128 divisors (see below), whose sum is σ = 17626714560000. Its totient is φ = 3269521382400.

The previous prime is 7896890781203. The next prime is 7896890781233. The reversal of 7896890781208 is 8021870986987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7896890781203) by changing a digit.

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, 32991543 + ... + 33230041.

It is an arithmetic number, because the mean of its divisors is an integer number (137708707500).

Almost surely, 2^{7896890781208} 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 7896890781208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8813357280000).

7896890781208 is an abundant number, since it is smaller than the sum of its proper divisors (9729823778792).

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

7896890781208 is a wasteful number, since it uses less digits than its factorization.

7896890781208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238913 (or 238909 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 73.

The spelling of 7896890781208 in words is "seven trillion, eight hundred ninety-six billion, eight hundred ninety million, seven hundred eighty-one thousand, two hundred eight".