749474060985 has 192 divisors, whose sum is σ = 1471728061440. Its totient is φ = 363685386240.

The previous prime is 749474060981. The next prime is 749474061029. The reversal of 749474060985 is 589060474947.

749474060985 is a `hidden beast` number, since 7 + 494 + 7 + 4 + 0 + 60 + 9 + 85 = 666.

It is not a de Polignac number, because 749474060985 - 2² = 749474060981 is a prime.

It is a super-2 number, since 2×749474060985² (a number of 25 digits) contains 22 as substring.

Together with 722254000455 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (749474060981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 605879787 + ... + 605881023.

It is an arithmetic number, because the mean of its divisors is an integer number (7665250320).

Almost surely, 2^749474060985 is an apocalyptic number.

It is an amenable number.

749474060985 is a deficient number, since it is larger than the sum of its proper divisors (722254000455).

749474060985 is a wasteful number, since it uses less digits than its factorization.

749474060985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 749474060985 in words is "seven hundred forty-nine billion, four hundred seventy-four million, sixty thousand, nine hundred eighty-five".