2068602888040 has 32 divisors (see below), whose sum is σ = 5012383922280. Its totient is φ = 763791835392.

The previous prime is 2068602888029. The next prime is 2068602888049. The reversal of 2068602888040 is 408882068602.

It can be written as a sum of positive squares in 4 ways, for example, as 1465150468356 + 603452419684 = 1210434^2 + 776822^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (2068602888049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989040719 + ... + 1989041758.

Almost surely, 2^{2068602888040} is an apocalyptic number.

2068602888040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068602888040 is an abundant number, since it is smaller than the sum of its proper divisors (2943781034240).

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

2068602888040 is a wasteful number, since it uses less digits than its factorization.

2068602888040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978082501 (or 3978082497 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 2068602888040 in words is "two trillion, sixty-eight billion, six hundred two million, eight hundred eighty-eight thousand, forty".