35206142689 has 3 divisors (see below), whose sum is σ = 35206330323. Its totient is φ = 35205955056.

The previous prime is 35206142683. The next prime is 35206142717. The reversal of 35206142689 is 98624160253.

The square root of 35206142689 is 187633.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98624160253 = 953 ⋅103488101.

It can be written as a sum of positive squares in only one way, i.e., 35098149025 + 107993664 = 187345^2 + 10392^2 .

It is not a de Polignac number, because 35206142689 - 2³ = 35206142681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35206142681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 93817 + ... + 281449.

It is an arithmetic number, because the mean of its divisors is an integer number (11735443441).

Almost surely, 2^35206142689 is an apocalyptic number.

35206142689 is the 187633-rd square number.

35206142689 is the 93817-th centered octagonal number.

It is an amenable number.

35206142689 is a deficient number, since it is larger than the sum of its proper divisors (187634).

35206142689 is an frugal number, since it uses more digits than its factorization.

35206142689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375266 (or 187633 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 35206142689 in words is "thirty-five billion, two hundred six million, one hundred forty-two thousand, six hundred eighty-nine".