494953642533193 has 4 divisors (see below), whose sum is σ = 498106213504900. Its totient is φ = 491801071561488.

The previous prime is 494953642533191. The next prime is 494953642533197. The reversal of 494953642533193 is 391335246359494.

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

It can be written as a sum of positive squares in 2 ways, for example, as 147264365374009 + 347689277159184 = 12135253^2 + 18646428^2 .

It is a cyclic number.

It is not a de Polignac number, because 494953642533193 - 2¹ = 494953642533191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494953642533191) 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, 1576285485618 + ... + 1576285485931.

It is an arithmetic number, because the mean of its divisors is an integer number (124526553376225).

Almost surely, 2^{494953642533193} is an apocalyptic number.

It is an amenable number.

494953642533193 is a deficient number, since it is larger than the sum of its proper divisors (3152570971707).

494953642533193 is a wasteful number, since it uses less digits than its factorization.

494953642533193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152570971706.

The product of its digits is 1133740800, while the sum is 70.

The spelling of 494953642533193 in words is "four hundred ninety-four trillion, nine hundred fifty-three billion, six hundred forty-two million, five hundred thirty-three thousand, one hundred ninety-three".