680822068754 has 8 divisors (see below), whose sum is σ = 1021506683340. Its totient is φ = 340319840976.

The previous prime is 680822068747. The next prime is 680822068793. The reversal of 680822068754 is 457860228086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 592556629729 + 88265439025 = 769777^2 + 297095^2 .

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

It is a super-2 number, since 2×680822068754² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680822068754.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45587369 + ... + 45602300.

Almost surely, 2^680822068754 is an apocalyptic number.

680822068754 is a deficient number, since it is larger than the sum of its proper divisors (340684614586).

680822068754 is a wasteful number, since it uses less digits than its factorization.

680822068754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91193404.

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 680822068754 in words is "six hundred eighty billion, eight hundred twenty-two million, sixty-eight thousand, seven hundred fifty-four".