135444202878853 has 4 divisors (see below), whose sum is σ = 147757312231488. Its totient is φ = 123131093526220.

The previous prime is 135444202878841. The next prime is 135444202878947. The reversal of 135444202878853 is 358878202444531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135444202878853 - 2⁵ = 135444202878821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135444202878553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6156554676301 + ... + 6156554676322.

It is an arithmetic number, because the mean of its divisors is an integer number (36939328057872).

Almost surely, 2^{135444202878853} is an apocalyptic number.

It is an amenable number.

135444202878853 is a deficient number, since it is larger than the sum of its proper divisors (12313109352635).

135444202878853 is a wasteful number, since it uses less digits than its factorization.

135444202878853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313109352634.

The product of its (nonzero) digits is 206438400, while the sum is 64.

The spelling of 135444202878853 in words is "one hundred thirty-five trillion, four hundred forty-four billion, two hundred two million, eight hundred seventy-eight thousand, eight hundred fifty-three".