2591131704681 has 64 divisors (see below), whose sum is σ = 3860024313600. Its totient is φ = 1535737605120.

The previous prime is 2591131704673. The next prime is 2591131704713. The reversal of 2591131704681 is 1864071311952.

It is not a de Polignac number, because 2591131704681 - 2³ = 2591131704673 is a prime.

It is a super-2 number, since 2×2591131704681² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2591131704681.

It is not an unprimeable number, because it can be changed into a prime (2591131704631) 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 63 ways as a sum of consecutive naturals, for example, 62976486 + ... + 63017616.

It is an arithmetic number, because the mean of its divisors is an integer number (60312879900).

It is a 1-persistent number, because it is pandigital, but 2⋅2591131704681 = 5182263409362 is not.

Almost surely, 2^{2591131704681} is an apocalyptic number.

It is an amenable number.

2591131704681 is a deficient number, since it is larger than the sum of its proper divisors (1268892608919).

2591131704681 is a wasteful number, since it uses less digits than its factorization.

2591131704681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41626.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 2591131704681 in words is "two trillion, five hundred ninety-one billion, one hundred thirty-one million, seven hundred four thousand, six hundred eighty-one".