2081886751 has 8 divisors (see below), whose sum is σ = 2418304544. Its totient is φ = 1755220320.

The previous prime is 2081886739. The next prime is 2081886757. The reversal of 2081886751 is 1576881802.

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

It is not a de Polignac number, because 2081886751 - 2¹¹ = 2081884703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081886757) 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, 2437380 + ... + 2438233.

It is an arithmetic number, because the mean of its divisors is an integer number (302288068).

Almost surely, 2^2081886751 is an apocalyptic number.

2081886751 is a deficient number, since it is larger than the sum of its proper divisors (336417793).

2081886751 is an equidigital number, since it uses as much as digits as its factorization.

2081886751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875681.

The product of its (nonzero) digits is 215040, while the sum is 46.

The square root of 2081886751 is about 45627.6971915086. The cubic root of 2081886751 is about 1276.8867109603.

The spelling of 2081886751 in words is "two billion, eighty-one million, eight hundred eighty-six thousand, seven hundred fifty-one".