2030571681 has 16 divisors (see below), whose sum is σ = 2902982400. Its totient is φ = 1257954048.

The previous prime is 2030571679. The next prime is 2030571689. The reversal of 2030571681 is 1861750302.

It is not a de Polignac number, because 2030571681 - 2¹ = 2030571679 is a prime.

It is a super-2 number, since 2×2030571681² = 8246442703358331522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2030571689) 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, 247966 + ... + 256023.

It is an arithmetic number, because the mean of its divisors is an integer number (181436400).

Almost surely, 2^2030571681 is an apocalyptic number.

It is an amenable number.

2030571681 is a deficient number, since it is larger than the sum of its proper divisors (872410719).

2030571681 is a wasteful number, since it uses less digits than its factorization.

2030571681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504088.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2030571681 is about 45061.8650412963. The cubic root of 2030571681 is about 1266.3082656905.

The spelling of 2030571681 in words is "two billion, thirty million, five hundred seventy-one thousand, six hundred eighty-one".