535684742378 has 4 divisors (see below), whose sum is σ = 803527113570. Its totient is φ = 267842371188.

The previous prime is 535684742377. The next prime is 535684742393. The reversal of 535684742378 is 873247486535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873247486535 = 5 ⋅174649497307.

It can be written as a sum of positive squares in only one way, i.e., 510114493729 + 25570248649 = 714223^2 + 159907^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 535684742378.

It is not an unprimeable number, because it can be changed into a prime (535684742377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133921185593 + ... + 133921185596.

Almost surely, 2^535684742378 is an apocalyptic number.

535684742378 is a deficient number, since it is larger than the sum of its proper divisors (267842371192).

535684742378 is a wasteful number, since it uses less digits than its factorization.

535684742378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267842371191.

The product of its digits is 135475200, while the sum is 62.

The spelling of 535684742378 in words is "five hundred thirty-five billion, six hundred eighty-four million, seven hundred forty-two thousand, three hundred seventy-eight".