493383804638 has 4 divisors (see below), whose sum is σ = 740075706960. Its totient is φ = 246691902318.

The previous prime is 493383804619. The next prime is 493383804649. The reversal of 493383804638 is 836408383394.

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

It is a super-2 number, since 2×493383804638² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 123345951158 + ... + 123345951161.

It is an arithmetic number, because the mean of its divisors is an integer number (185018926740).

Almost surely, 2^493383804638 is an apocalyptic number.

493383804638 is a deficient number, since it is larger than the sum of its proper divisors (246691902322).

493383804638 is a wasteful number, since it uses less digits than its factorization.

493383804638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246691902321.

The product of its (nonzero) digits is 35831808, while the sum is 59.

The spelling of 493383804638 in words is "four hundred ninety-three billion, three hundred eighty-three million, eight hundred four thousand, six hundred thirty-eight".