2081137697 has 16 divisors (see below), whose sum is σ = 2249717760. Its totient is φ = 1919054592.

The previous prime is 2081137691. The next prime is 2081137699. The reversal of 2081137697 is 7967311802.

It is a cyclic number.

It is not a de Polignac number, because 2081137697 - 2¹² = 2081133601 is a prime.

It is a super-2 number, since 2×2081137697² = 8662268227748927618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081137691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119753 + ... + 136025.

It is an arithmetic number, because the mean of its divisors is an integer number (140607360).

Almost surely, 2^2081137697 is an apocalyptic number.

It is an amenable number.

2081137697 is a deficient number, since it is larger than the sum of its proper divisors (168580063).

2081137697 is a wasteful number, since it uses less digits than its factorization.

2081137697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 2081137697 is about 45619.4881273344. The cubic root of 2081137697 is about 1276.7335531207.

The spelling of 2081137697 in words is "two billion, eighty-one million, one hundred thirty-seven thousand, six hundred ninety-seven".