1834745007681 has 128 divisors (see below), whose sum is σ = 2838404874240. Its totient is φ = 1170633129984.

The previous prime is 1834745007673. The next prime is 1834745007709. The reversal of 1834745007681 is 1867005474381.

1834745007681 is a `hidden beast` number, since 1 + 8 + 3 + 4 + 74 + 500 + 7 + 68 + 1 = 666.

It is not a de Polignac number, because 1834745007681 - 2³ = 1834745007673 is a prime.

It is a super-2 number, since 2×1834745007681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1834745007581) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6483197766 + ... + 6483198048.

It is an arithmetic number, because the mean of its divisors is an integer number (22175038080).

Almost surely, 2^{1834745007681} is an apocalyptic number.

It is an amenable number.

1834745007681 is a deficient number, since it is larger than the sum of its proper divisors (1003659866559).

1834745007681 is a wasteful number, since it uses less digits than its factorization.

1834745007681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 1834745007681 in words is "one trillion, eight hundred thirty-four billion, seven hundred forty-five million, seven thousand, six hundred eighty-one".