680892026784 has 48 divisors (see below), whose sum is σ = 1793936995200. Its totient is φ = 226126494720.

The previous prime is 680892026699. The next prime is 680892026827. The reversal of 680892026784 is 487620298086.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×680892026784² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13060009 + ... + 13112040.

It is an arithmetic number, because the mean of its divisors is an integer number (37373687400).

Almost surely, 2^680892026784 is an apocalyptic number.

It is an amenable number.

680892026784 is an abundant number, since it is smaller than the sum of its proper divisors (1113044968416).

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

680892026784 is a wasteful number, since it uses less digits than its factorization.

680892026784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26172333 (or 26172325 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 680892026784 in words is "six hundred eighty billion, eight hundred ninety-two million, twenty-six thousand, seven hundred eighty-four".