2686264390 has 16 divisors (see below), whose sum is σ = 4991253120. Its totient is φ = 1039844160.

The previous prime is 2686264319. The next prime is 2686264393. The reversal of 2686264390 is 934626862.

It is a self number, because there is not a number n which added to its sum of digits gives 2686264390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686264393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332375 + ... + 4332994.

It is an arithmetic number, because the mean of its divisors is an integer number (311953320).

Almost surely, 2^2686264390 is an apocalyptic number.

2686264390 is a deficient number, since it is larger than the sum of its proper divisors (2304988730).

2686264390 is a wasteful number, since it uses less digits than its factorization.

2686264390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665407.

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 2686264390 is about 51829.1847321565. The cubic root of 2686264390 is about 1390.1113362504. Note that the first 3 decimals are identical.

The spelling of 2686264390 in words is "two billion, six hundred eighty-six million, two hundred sixty-four thousand, three hundred ninety".