2081405813351 has 16 divisors (see below), whose sum is σ = 2137684348800. Its totient is φ = 2025489127200.

The previous prime is 2081405813329. The next prime is 2081405813407. The reversal of 2081405813351 is 1533185041802.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2081405813351 - 2³⁰ = 2080332071527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2081405813299 and 2081405813308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081405813951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48497300 + ... + 48540198.

It is an arithmetic number, because the mean of its divisors is an integer number (133605271800).

Almost surely, 2^{2081405813351} is an apocalyptic number.

2081405813351 is a deficient number, since it is larger than the sum of its proper divisors (56278535449).

2081405813351 is a wasteful number, since it uses less digits than its factorization.

2081405813351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47086.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 2081405813351 in words is "two trillion, eighty-one billion, four hundred five million, eight hundred thirteen thousand, three hundred fifty-one".