2135155684209 has 8 divisors (see below), whose sum is σ = 2851194239520. Its totient is φ = 1421277125856.

The previous prime is 2135155684199. The next prime is 2135155684223. The reversal of 2135155684209 is 9024865515312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2135155684209 - 2¹⁵ = 2135155651441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2135155688209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539996932 + ... + 540000885.

It is an arithmetic number, because the mean of its divisors is an integer number (356399279940).

Almost surely, 2^{2135155684209} is an apocalyptic number.

It is an amenable number.

2135155684209 is a deficient number, since it is larger than the sum of its proper divisors (716038555311).

2135155684209 is a wasteful number, since it uses less digits than its factorization.

2135155684209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079998479.

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 2135155684209 in words is "two trillion, one hundred thirty-five billion, one hundred fifty-five million, six hundred eighty-four thousand, two hundred nine".