2668362785 has 12 divisors (see below), whose sum is σ = 3519593364. Its totient is φ = 1940627040.

The previous prime is 2668362691. The next prime is 2668362787. The reversal of 2668362785 is 5872638662.

It can be written as a sum of positive squares in 2 ways, for example, as 967707664 + 1700655121 = 31108^2 + 41239^2 .

It is not a de Polignac number, because 2668362785 - 2¹⁶ = 2668297249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2668362787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2204654 + ... + 2205863.

It is an arithmetic number, because the mean of its divisors is an integer number (293299447).

Almost surely, 2^2668362785 is an apocalyptic number.

It is an amenable number.

2668362785 is a deficient number, since it is larger than the sum of its proper divisors (851230579).

2668362785 is a wasteful number, since it uses less digits than its factorization.

2668362785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410544 (or 4410533 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The square root of 2668362785 is about 51656.1979340330. The cubic root of 2668362785 is about 1387.0164920820.

The spelling of 2668362785 in words is "two billion, six hundred sixty-eight million, three hundred sixty-two thousand, seven hundred eighty-five".