755342243557 has 4 divisors (see below), whose sum is σ = 824009720256. Its totient is φ = 686674766860.

The previous prime is 755342243519. The next prime is 755342243573.

755342243557 is nontrivially palindromic in base 10.

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 755342243557 - 2¹⁵ = 755342210789 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 (755342243657) 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, 34333738333 + ... + 34333738354.

It is an arithmetic number, because the mean of its divisors is an integer number (206002430064).

Almost surely, 2^755342243557 is an apocalyptic number.

It is an amenable number.

755342243557 is a deficient number, since it is larger than the sum of its proper divisors (68667476699).

755342243557 is a wasteful number, since it uses less digits than its factorization.

755342243557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68667476698.

The product of its digits is 17640000, while the sum is 52.

It can be divided in two parts, 755342 and 243557, that added together give a palindrome (998899).

The spelling of 755342243557 in words is "seven hundred fifty-five billion, three hundred forty-two million, two hundred forty-three thousand, five hundred fifty-seven".