5681393886 has 96 divisors (see below), whose sum is σ = 13797073440. Its totient is φ = 1553147904.

The previous prime is 5681393867. The next prime is 5681393891. The reversal of 5681393886 is 6883931865.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 960490 + ... + 966386.

It is an arithmetic number, because the mean of its divisors is an integer number (143719515).

Almost surely, 2^5681393886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5681393886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6898536720).

5681393886 is an abundant number, since it is smaller than the sum of its proper divisors (8115679554).

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

5681393886 is a wasteful number, since it uses less digits than its factorization.

5681393886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6051 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The square root of 5681393886 is about 75375.0216318377. The cubic root of 5681393886 is about 1784.3702199661.

The spelling of 5681393886 in words is "five billion, six hundred eighty-one million, three hundred ninety-three thousand, eight hundred eighty-six".