681104770337 has 4 divisors (see below), whose sum is σ = 684562155156. Its totient is φ = 677647385520.

The previous prime is 681104770289. The next prime is 681104770343. The reversal of 681104770337 is 733077401186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 639782418496 + 41322351841 = 799864^2 + 203279^2 .

It is a cyclic number.

It is not a de Polignac number, because 681104770337 - 2¹⁸ = 681104508193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 681104770291 and 681104770300.

It is not an unprimeable number, because it can be changed into a prime (681104770237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728692114 + ... + 1728692507.

It is an arithmetic number, because the mean of its divisors is an integer number (171140538789).

Almost surely, 2^681104770337 is an apocalyptic number.

It is an amenable number.

681104770337 is a deficient number, since it is larger than the sum of its proper divisors (3457384819).

681104770337 is a wasteful number, since it uses less digits than its factorization.

681104770337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457384818.

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 681104770337 in words is "six hundred eighty-one billion, one hundred four million, seven hundred seventy thousand, three hundred thirty-seven".