493164331643 has 4 divisors (see below), whose sum is σ = 493338167520. Its totient is φ = 492990495768.

The previous prime is 493164331631. The next prime is 493164331651. The reversal of 493164331643 is 346133461394.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 493164331643 - 2³⁶ = 424444854907 is a prime.

It is a super-2 number, since 2×493164331643² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493164331613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86913683 + ... + 86919356.

It is an arithmetic number, because the mean of its divisors is an integer number (123334541880).

Almost surely, 2^493164331643 is an apocalyptic number.

493164331643 is a deficient number, since it is larger than the sum of its proper divisors (173835877).

493164331643 is a wasteful number, since it uses less digits than its factorization.

493164331643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173835876.

The product of its digits is 1679616, while the sum is 47.

The spelling of 493164331643 in words is "four hundred ninety-three billion, one hundred sixty-four million, three hundred thirty-one thousand, six hundred forty-three".