540811689202 has 16 divisors (see below), whose sum is σ = 888554703960. Its totient is φ = 245723769088.

The previous prime is 540811689199. The next prime is 540811689241. The reversal of 540811689202 is 202986118045.

It is a Cunningham number, because it is equal to 735399²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 421046552161 + 119765137041 = 648881^2 + 346071^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274244293 + ... + 274246264.

Almost surely, 2^540811689202 is an apocalyptic number.

540811689202 is a deficient number, since it is larger than the sum of its proper divisors (347743014758).

540811689202 is a wasteful number, since it uses less digits than its factorization.

540811689202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548490605.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 540811689202 in words is "five hundred forty billion, eight hundred eleven million, six hundred eighty-nine thousand, two hundred two".