2685720623 has 8 divisors (see below), whose sum is σ = 2827609200. Its totient is φ = 2543885568.

The previous prime is 2685720613. The next prime is 2685720659. The reversal of 2685720623 is 3260275862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2685720623 - 2¹⁰ = 2685719599 is a prime.

It is a super-3 number, since 3×2685720623³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685720613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128063 + ... + 147551.

It is an arithmetic number, because the mean of its divisors is an integer number (353451150).

Almost surely, 2^2685720623 is an apocalyptic number.

2685720623 is a deficient number, since it is larger than the sum of its proper divisors (141888577).

2685720623 is a wasteful number, since it uses less digits than its factorization.

2685720623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26761.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2685720623 is about 51823.9387059687. The cubic root of 2685720623 is about 1390.0175321702.

The spelling of 2685720623 in words is "two billion, six hundred eighty-five million, seven hundred twenty thousand, six hundred twenty-three".