494867653633 has 4 divisors (see below), whose sum is σ = 498427852720. Its totient is φ = 491307454548.

The previous prime is 494867653549. The next prime is 494867653667. The reversal of 494867653633 is 336356768494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494867653633 is a prime.

It is a super-2 number, since 2×494867653633² (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 (494867657633) 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, 1780099335 + ... + 1780099612.

It is an arithmetic number, because the mean of its divisors is an integer number (124606963180).

Almost surely, 2^494867653633 is an apocalyptic number.

It is an amenable number.

494867653633 is a deficient number, since it is larger than the sum of its proper divisors (3560199087).

494867653633 is a wasteful number, since it uses less digits than its factorization.

494867653633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560199086.

The product of its digits is 235146240, while the sum is 64.

The spelling of 494867653633 in words is "four hundred ninety-four billion, eight hundred sixty-seven million, six hundred fifty-three thousand, six hundred thirty-three".