2081131677 has 32 divisors (see below), whose sum is σ = 3111644160. Its totient is φ = 1374660720.

The previous prime is 2081131651. The next prime is 2081131697. The reversal of 2081131677 is 7761311802.

It is not a de Polignac number, because 2081131677 - 2¹¹ = 2081129629 is a prime.

It is a super-2 number, since 2×2081131677² = 8662218114025664658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081131697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2142802 + ... + 2143772.

It is an arithmetic number, because the mean of its divisors is an integer number (97238880).

Almost surely, 2^2081131677 is an apocalyptic number.

2081131677 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2081131677 is a deficient number, since it is larger than the sum of its proper divisors (1030512483).

2081131677 is a wasteful number, since it uses less digits than its factorization.

2081131677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 2081131677 is about 45619.4221467129. The cubic root of 2081131677 is about 1276.7323220724.

The spelling of 2081131677 in words is "two billion, eighty-one million, one hundred thirty-one thousand, six hundred seventy-seven".