2071512681 has 12 divisors (see below), whose sum is σ = 3212958672. Its totient is φ = 1183721448.

The previous prime is 2071512671. The next prime is 2071512701. The reversal of 2071512681 is 1862151702.

It is not a de Polignac number, because 2071512681 - 2¹⁰ = 2071511657 is a prime.

It is a super-2 number, since 2×2071512681² = 8582329575087615522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2071512631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7045815 + ... + 7046108.

It is an arithmetic number, because the mean of its divisors is an integer number (267746556).

Almost surely, 2^2071512681 is an apocalyptic number.

2071512681 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2071512681 is a deficient number, since it is larger than the sum of its proper divisors (1141445991).

2071512681 is a wasteful number, since it uses less digits than its factorization.

2071512681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14091940 (or 14091933 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 2071512681 is about 45513.8735002856. The cubic root of 2071512681 is about 1274.7622637099.

The spelling of 2071512681 in words is "two billion, seventy-one million, five hundred twelve thousand, six hundred eighty-one".