7868389746 has 64 divisors (see below), whose sum is σ = 18780346368. Its totient is φ = 2148820608.

The previous prime is 7868389741. The next prime is 7868389759. The reversal of 7868389746 is 6479838687.

It is not an unprimeable number, because it can be changed into a prime (7868389741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2188126 + ... + 2191718.

It is an arithmetic number, because the mean of its divisors is an integer number (293442912).

Almost surely, 2^7868389746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7868389746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9390173184).

7868389746 is an abundant number, since it is smaller than the sum of its proper divisors (10911956622).

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

7868389746 is a wasteful number, since it uses less digits than its factorization.

7868389746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895.

The product of its digits is 97542144, while the sum is 66.

The square root of 7868389746 is about 88703.9443655129. The cubic root of 7868389746 is about 1988.9717797853.

The spelling of 7868389746 in words is "seven billion, eight hundred sixty-eight million, three hundred eighty-nine thousand, seven hundred forty-six".