2089754630681 has 4 divisors (see below), whose sum is σ = 2089895020032. Its totient is φ = 2089614241332.

The previous prime is 2089754630651. The next prime is 2089754630683. The reversal of 2089754630681 is 1860364579802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2089754630681 is a prime.

It is a super-3 number, since 3×2089754630681³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2089754630681.

It is not an unprimeable number, because it can be changed into a prime (2089754630683) 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, 70172345 + ... + 70202118.

It is an arithmetic number, because the mean of its divisors is an integer number (522473755008).

It is a 1-persistent number, because it is pandigital, but 2⋅2089754630681 = 4179509261362 is not.

Almost surely, 2^{2089754630681} is an apocalyptic number.

It is an amenable number.

2089754630681 is a deficient number, since it is larger than the sum of its proper divisors (140389351).

2089754630681 is a wasteful number, since it uses less digits than its factorization.

2089754630681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140389350.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 2089754630681 in words is "two trillion, eighty-nine billion, seven hundred fifty-four million, six hundred thirty thousand, six hundred eighty-one".