2035200018681 has 36 divisors (see below), whose sum is σ = 3060376318428. Its totient is φ = 1303225233408.

The previous prime is 2035200018673. The next prime is 2035200018743. The reversal of 2035200018681 is 1868100025302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 357294303081 + 1677905715600 = 597741^2 + 1295340^2 .

It is not a de Polignac number, because 2035200018681 - 2³ = 2035200018673 is a prime.

It is a super-2 number, since 2×2035200018681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2035200018611) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 764221 + ... + 2157413.

Almost surely, 2^{2035200018681} is an apocalyptic number.

It is an amenable number.

2035200018681 is a deficient number, since it is larger than the sum of its proper divisors (1025176299747).

2035200018681 is a wasteful number, since it uses less digits than its factorization.

2035200018681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393450 (or 1393418 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 2035200018681 in words is "two trillion, thirty-five billion, two hundred million, eighteen thousand, six hundred eighty-one".