493619629091 has 4 divisors (see below), whose sum is σ = 497506397952. Its totient is φ = 489732860232.

The previous prime is 493619629043. The next prime is 493619629093. The reversal of 493619629091 is 190926916394.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493619629091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493619629091.

It is not an unprimeable number, because it can be changed into a prime (493619629093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943384240 + ... + 1943384493.

It is an arithmetic number, because the mean of its divisors is an integer number (124376599488).

Almost surely, 2^493619629091 is an apocalyptic number.

493619629091 is a deficient number, since it is larger than the sum of its proper divisors (3886768861).

493619629091 is a wasteful number, since it uses less digits than its factorization.

493619629091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886768860.

The product of its (nonzero) digits is 5668704, while the sum is 59.

The spelling of 493619629091 in words is "four hundred ninety-three billion, six hundred nineteen million, six hundred twenty-nine thousand, ninety-one".