681003297453 has 8 divisors (see below), whose sum is σ = 908038905408. Its totient is φ = 453984943904.

The previous prime is 681003297419. The next prime is 681003297509. The reversal of 681003297453 is 354792300186.

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

It is a cyclic number.

It is not a de Polignac number, because 681003297453 - 2¹⁶ = 681003231917 is a prime.

It is a super-2 number, since 2×681003297453² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681003297413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4221225 + ... + 4379582.

It is an arithmetic number, because the mean of its divisors is an integer number (113504863176).

It is a 1-persistent number, because it is pandigital, but 2⋅681003297453 = 1362006594906 is not.

Almost surely, 2^681003297453 is an apocalyptic number.

It is an amenable number.

681003297453 is a deficient number, since it is larger than the sum of its proper divisors (227035607955).

681003297453 is a wasteful number, since it uses less digits than its factorization.

681003297453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8627203.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 681003297453 in words is "six hundred eighty-one billion, three million, two hundred ninety-seven thousand, four hundred fifty-three".