744491166993 has 24 divisors (see below), whose sum is σ = 1229680111296. Its totient is φ = 425188548000.

The previous prime is 744491166907. The next prime is 744491166997. The reversal of 744491166993 is 399661194447.

744491166993 is a `hidden beast` number, since 7 + 44 + 491 + 16 + 6 + 9 + 93 = 666.

It is not a de Polignac number, because 744491166993 - 2¹⁰ = 744491165969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 744491166993.

It is not an unprimeable number, because it can be changed into a prime (744491166997) 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 23 ways as a sum of consecutive naturals, for example, 3148558 + ... + 3376743.

It is an arithmetic number, because the mean of its divisors is an integer number (51236671304).

Almost surely, 2^744491166993 is an apocalyptic number.

It is an amenable number.

744491166993 is a deficient number, since it is larger than the sum of its proper divisors (485188944303).

744491166993 is a wasteful number, since it uses less digits than its factorization.

744491166993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527125 (or 6527122 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The spelling of 744491166993 in words is "seven hundred forty-four billion, four hundred ninety-one million, one hundred sixty-six thousand, nine hundred ninety-three".