680067781108 has 48 divisors (see below), whose sum is σ = 1315469030400. Its totient is φ = 305988176384.

The previous prime is 680067781069. The next prime is 680067781111. The reversal of 680067781108 is 801187760086.

It is a super-3 number, since 3×680067781108³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3661410 + ... + 3842662.

It is an arithmetic number, because the mean of its divisors is an integer number (27405604800).

Almost surely, 2^680067781108 is an apocalyptic number.

680067781108 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

680067781108 is a deficient number, since it is larger than the sum of its proper divisors (635401249292).

680067781108 is a wasteful number, since it uses less digits than its factorization.

680067781108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183696 (or 183694 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 52.

The spelling of 680067781108 in words is "six hundred eighty billion, sixty-seven million, seven hundred eighty-one thousand, one hundred eight".