814668821342 has 4 divisors (see below), whose sum is σ = 1222003232016. Its totient is φ = 407334410670.

The previous prime is 814668821297. The next prime is 814668821357. The reversal of 814668821342 is 243128866418.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203667205334 + ... + 203667205337.

It is an arithmetic number, because the mean of its divisors is an integer number (305500808004).

Almost surely, 2^814668821342 is an apocalyptic number.

814668821342 is a deficient number, since it is larger than the sum of its proper divisors (407334410674).

814668821342 is a wasteful number, since it uses less digits than its factorization.

814668821342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407334410673.

The product of its digits is 3538944, while the sum is 53.

The spelling of 814668821342 in words is "eight hundred fourteen billion, six hundred sixty-eight million, eight hundred twenty-one thousand, three hundred forty-two".