2000694262681 has 9 divisors (see below), whose sum is σ = 2050741308223. Its totient is φ = 1951840263280.

The previous prime is 2000694262669. The next prime is 2000694262751. The reversal of 2000694262681 is 1862624960002.

The square root of 2000694262681 is 1414459.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 96404661081 + 1904289601600 = 310491^2 + 1379960^2 .

It is not a de Polignac number, because 2000694262681 - 2⁹ = 2000694262169 is a prime.

It is a super-2 number, since 2×2000694262681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000694262621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57975570 + ... + 58010068.

Almost surely, 2^{2000694262681} is an apocalyptic number.

2000694262681 is the 1414459-th square number.

2000694262681 is the 707230-th centered octagonal number.

It is an amenable number.

2000694262681 is a deficient number, since it is larger than the sum of its proper divisors (50047045542).

2000694262681 is an frugal number, since it uses more digits than its factorization.

2000694262681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69080 (or 34540 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 2000694262681 in words is "two trillion, six hundred ninety-four million, two hundred sixty-two thousand, six hundred eighty-one".