35042021405 has 4 divisors (see below), whose sum is σ = 42050425692. Its totient is φ = 28033617120.

The previous prime is 35042021393. The next prime is 35042021411. The reversal of 35042021405 is 50412024053.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24095421529 + 10946599876 = 155227^2 + 104626^2 .

It is not a de Polignac number, because 35042021405 - 2¹⁰ = 35042020381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504202136 + ... + 3504202145.

It is an arithmetic number, because the mean of its divisors is an integer number (10512606423).

Almost surely, 2^35042021405 is an apocalyptic number.

It is an amenable number.

35042021405 is a deficient number, since it is larger than the sum of its proper divisors (7008404287).

35042021405 is an equidigital number, since it uses as much as digits as its factorization.

35042021405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008404286.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 35042021405 its reverse (50412024053), we get a palindrome (85454045458).

The spelling of 35042021405 in words is "thirty-five billion, forty-two million, twenty-one thousand, four hundred five".