494679989783 has 4 divisors (see below), whose sum is σ = 565348559760. Its totient is φ = 424011419808.

The previous prime is 494679989747. The next prime is 494679989809. The reversal of 494679989783 is 387989976494.

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 494679989783 - 2³⁴ = 477500120599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494679989483) 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, 35334284978 + ... + 35334284991.

It is an arithmetic number, because the mean of its divisors is an integer number (141337139940).

Almost surely, 2^494679989783 is an apocalyptic number.

494679989783 is a deficient number, since it is larger than the sum of its proper divisors (70668569977).

494679989783 is an equidigital number, since it uses as much as digits as its factorization.

494679989783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70668569976.

The product of its digits is 5925685248, while the sum is 83.

The spelling of 494679989783 in words is "four hundred ninety-four billion, six hundred seventy-nine million, nine hundred eighty-nine thousand, seven hundred eighty-three".