493978121606 has 8 divisors (see below), whose sum is σ = 740977047720. Its totient is φ = 246985772368.

The previous prime is 493978121561. The next prime is 493978121617. The reversal of 493978121606 is 606121879394.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451951 + ... + 1759578.

It is an arithmetic number, because the mean of its divisors is an integer number (92622130965).

Almost surely, 2^493978121606 is an apocalyptic number.

493978121606 is a deficient number, since it is larger than the sum of its proper divisors (246998926114).

493978121606 is a wasteful number, since it uses less digits than its factorization.

493978121606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288438.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 493978121606 in words is "four hundred ninety-three billion, nine hundred seventy-eight million, one hundred twenty-one thousand, six hundred six".