680892026785 has 32 divisors (see below), whose sum is σ = 837842019840. Its totient is φ = 531046883328.

The previous prime is 680892026699. The next prime is 680892026827. The reversal of 680892026785 is 587620298086.

680892026785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 680892026785 - 2¹¹ = 680892024737 is a prime.

It is a super-2 number, since 2×680892026785² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74515737 + ... + 74524873.

It is an arithmetic number, because the mean of its divisors is an integer number (26182563120).

Almost surely, 2^680892026785 is an apocalyptic number.

It is an amenable number.

680892026785 is a deficient number, since it is larger than the sum of its proper divisors (156949993055).

680892026785 is a wasteful number, since it uses less digits than its factorization.

680892026785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 680892026785 in words is "six hundred eighty billion, eight hundred ninety-two million, twenty-six thousand, seven hundred eighty-five".