681285369023 has 16 divisors (see below), whose sum is σ = 817917350400. Its totient is φ = 554820563616.

The previous prime is 681285368983. The next prime is 681285369073. The reversal of 681285369023 is 320963582186.

It is a cyclic number.

It is not a de Polignac number, because 681285369023 - 2²² = 681281174719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681285369073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14175965 + ... + 14223942.

It is an arithmetic number, because the mean of its divisors is an integer number (51119834400).

Almost surely, 2^681285369023 is an apocalyptic number.

681285369023 is a deficient number, since it is larger than the sum of its proper divisors (136631981377).

681285369023 is a wasteful number, since it uses less digits than its factorization.

681285369023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28400086.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 681285369023 in words is "six hundred eighty-one billion, two hundred eighty-five million, three hundred sixty-nine thousand, twenty-three".