6868144354 has 4 divisors (see below), whose sum is σ = 10302216534. Its totient is φ = 3434072176.

The previous prime is 6868144343. The next prime is 6868144399. The reversal of 6868144354 is 4534418686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6785970129 + 82174225 = 82377^2 + 9065^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6868144298 and 6868144307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1717036087 + ... + 1717036090.

Almost surely, 2^6868144354 is an apocalyptic number.

6868144354 is a deficient number, since it is larger than the sum of its proper divisors (3434072180).

6868144354 is a wasteful number, since it uses less digits than its factorization.

6868144354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434072179.

The product of its digits is 2211840, while the sum is 49.

The square root of 6868144354 is about 82874.2683466949. The cubic root of 6868144354 is about 1900.8439790660.

The spelling of 6868144354 in words is "six billion, eight hundred sixty-eight million, one hundred forty-four thousand, three hundred fifty-four".