2068718886 has 128 divisors (see below), whose sum is σ = 5153702400. Its totient is φ = 610727040.

The previous prime is 2068718851. The next prime is 2068718887. The reversal of 2068718886 is 6888178602.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068718887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6249741 + ... + 6250071.

It is an arithmetic number, because the mean of its divisors is an integer number (40263300).

Almost surely, 2^2068718886 is an apocalyptic number.

2068718886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2068718886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576851200).

2068718886 is an abundant number, since it is smaller than the sum of its proper divisors (3084983514).

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

2068718886 is a wasteful number, since it uses less digits than its factorization.

2068718886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The square root of 2068718886 is about 45483.1714593431. The cubic root of 2068718886 is about 1274.1889263707.

The spelling of 2068718886 in words is "two billion, sixty-eight million, seven hundred eighteen thousand, eight hundred eighty-six".