2081725765361 has 8 divisors (see below), whose sum is σ = 2270987989248. Its totient is φ = 1892465946000.

The previous prime is 2081725765321. The next prime is 2081725765403. The reversal of 2081725765361 is 1635675271802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2081725765361 - 2²² = 2081721571057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081725765321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540991 + ... + 2556971.

It is an arithmetic number, because the mean of its divisors is an integer number (283873498656).

Almost surely, 2^{2081725765361} is an apocalyptic number.

It is an amenable number.

2081725765361 is a deficient number, since it is larger than the sum of its proper divisors (189262223887).

2081725765361 is a wasteful number, since it uses less digits than its factorization.

2081725765361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202263.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 2081725765361 in words is "two trillion, eighty-one billion, seven hundred twenty-five million, seven hundred sixty-five thousand, three hundred sixty-one".