2081772671 has 8 divisors (see below), whose sum is σ = 2291123664. Its totient is φ = 1875771520.

The previous prime is 2081772659. The next prime is 2081772683. The reversal of 2081772671 is 1762771802.

It is an interprime number because it is at equal distance from previous prime (2081772659) and next prime (2081772683).

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 2081772671 - 2¹⁰ = 2081771647 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 (2081772271) 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, 836156 + ... + 838641.

It is an arithmetic number, because the mean of its divisors is an integer number (286390458).

Almost surely, 2^2081772671 is an apocalyptic number.

2081772671 is a deficient number, since it is larger than the sum of its proper divisors (209350993).

2081772671 is a wasteful number, since it uses less digits than its factorization.

2081772671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674921.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 2081772671 is about 45626.4470565044. The cubic root of 2081772671 is about 1276.8633875820.

The spelling of 2081772671 in words is "two billion, eighty-one million, seven hundred seventy-two thousand, six hundred seventy-one".