493689808194 has 64 divisors (see below), whose sum is σ = 1104377113728. Its totient is φ = 145826611200.

The previous prime is 493689808169. The next prime is 493689808211. The reversal of 493689808194 is 491808986394.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3040902 + ... + 3199134.

It is an arithmetic number, because the mean of its divisors is an integer number (17255892402).

Almost surely, 2^493689808194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 493689808194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552188556864).

493689808194 is an abundant number, since it is smaller than the sum of its proper divisors (610687305534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

493689808194 is a wasteful number, since it uses less digits than its factorization.

493689808194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159443.

The product of its (nonzero) digits is 107495424, while the sum is 69.

The spelling of 493689808194 in words is "four hundred ninety-three billion, six hundred eighty-nine million, eight hundred eight thousand, one hundred ninety-four".