494438399998 has 4 divisors (see below), whose sum is σ = 741657600000. Its totient is φ = 247219199998.

The previous prime is 494438399947. The next prime is 494438399999. The reversal of 494438399998 is 899993834494.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494438399999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123609599998 + ... + 123609600001.

It is an arithmetic number, because the mean of its divisors is an integer number (185414400000).

Almost surely, 2^494438399998 is an apocalyptic number.

494438399998 is a deficient number, since it is larger than the sum of its proper divisors (247219200002).

494438399998 is a wasteful number, since it uses less digits than its factorization.

494438399998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247219200001.

The product of its digits is 2176782336, while the sum is 79.

The spelling of 494438399998 in words is "four hundred ninety-four billion, four hundred thirty-eight million, three hundred ninety-nine thousand, nine hundred ninety-eight".