681003297452 has 24 divisors (see below), whose sum is σ = 1192599450000. Its totient is φ = 340260679616.

The previous prime is 681003297419. The next prime is 681003297509. The reversal of 681003297452 is 254792300186.

It is a super-3 number, since 3×681003297452³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 681003297397 and 681003297406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62056238 + ... + 62067210.

It is an arithmetic number, because the mean of its divisors is an integer number (49691643750).

It is a 1-persistent number, because it is pandigital, but 2⋅681003297452 = 1362006594904 is not.

Almost surely, 2^681003297452 is an apocalyptic number.

It is an amenable number.

681003297452 is a deficient number, since it is larger than the sum of its proper divisors (511596152548).

681003297452 is a wasteful number, since it uses less digits than its factorization.

681003297452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20545 (or 20543 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 681003297452 in words is "six hundred eighty-one billion, three million, two hundred ninety-seven thousand, four hundred fifty-two".