681004957203 has 6 divisors (see below), whose sum is σ = 983673827084. Its totient is φ = 454003304796.

The previous prime is 681004957201. The next prime is 681004957289. The reversal of 681004957203 is 302759400186.

681004957203 is a `hidden beast` number, since 68 + 10 + 0 + 4 + 9 + 572 + 0 + 3 = 666.

It is not a de Polignac number, because 681004957203 - 2¹ = 681004957201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681004957201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 37833608725 + ... + 37833608742.

It is a 1-persistent number, because it is pandigital, but 2⋅681004957203 = 1362009914406 is not.

Almost surely, 2^681004957203 is an apocalyptic number.

681004957203 is a deficient number, since it is larger than the sum of its proper divisors (302668869881).

681004957203 is a wasteful number, since it uses less digits than its factorization.

681004957203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75667217473 (or 75667217470 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 681004957203 in words is "six hundred eighty-one billion, four million, nine hundred fifty-seven thousand, two hundred three".