494557049745 has 72 divisors (see below), whose sum is σ = 942445865088. Its totient is φ = 239734630080.

The previous prime is 494557049741. The next prime is 494557049837. The reversal of 494557049745 is 547940755494.

494557049745 is a `hidden beast` number, since 4 + 9 + 4 + 557 + 0 + 4 + 9 + 74 + 5 = 666.

It is not a de Polignac number, because 494557049745 - 2² = 494557049741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494557049741) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46620232 + ... + 46630838.

It is an arithmetic number, because the mean of its divisors is an integer number (13089525904).

Almost surely, 2^494557049745 is an apocalyptic number.

494557049745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

494557049745 is a deficient number, since it is larger than the sum of its proper divisors (447888815343).

494557049745 is a wasteful number, since it uses less digits than its factorization.

494557049745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203 (or 19189 counting only the distinct ones).

The product of its (nonzero) digits is 127008000, while the sum is 63.

The spelling of 494557049745 in words is "four hundred ninety-four billion, five hundred fifty-seven million, forty-nine thousand, seven hundred forty-five".