9742749759 has 12 divisors (see below), whose sum is σ = 14900676336. Its totient is φ = 6113097792.

The previous prime is 9742749713. The next prime is 9742749889. The reversal of 9742749759 is 9579472479.

9742749759 is a `hidden beast` number, since 9 + 74 + 27 + 497 + 59 = 666.

It is not a de Polignac number, because 9742749759 - 2⁷ = 9742749631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9742749696 and 9742749705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742649759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31838899 + ... + 31839204.

It is an arithmetic number, because the mean of its divisors is an integer number (1241723028).

Almost surely, 2^9742749759 is an apocalyptic number.

9742749759 is a deficient number, since it is larger than the sum of its proper divisors (5157926577).

9742749759 is a wasteful number, since it uses less digits than its factorization.

9742749759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63678126 (or 63678123 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The square root of 9742749759 is about 98705.3684406274. The cubic root of 9742749759 is about 2135.7996744072.

The spelling of 9742749759 in words is "nine billion, seven hundred forty-two million, seven hundred forty-nine thousand, seven hundred fifty-nine".