9742749705 has 24 divisors (see below), whose sum is σ = 18186467208. Its totient is φ = 4796430336.

The previous prime is 9742749703. The next prime is 9742749707. The reversal of 9742749705 is 5079472479.

It is an interprime number because it is at equal distance from previous prime (9742749703) and next prime (9742749707).

It can be written as a sum of positive squares in 4 ways, for example, as 475414416 + 9267335289 = 21804^2 + 96267^2 .

It is not a de Polignac number, because 9742749705 - 2¹ = 9742749703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9742749703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8326552 + ... + 8327721.

It is an arithmetic number, because the mean of its divisors is an integer number (757769467).

Almost surely, 2^9742749705 is an apocalyptic number.

It is an amenable number.

9742749705 is a deficient number, since it is larger than the sum of its proper divisors (8443717503).

9742749705 is a wasteful number, since it uses less digits than its factorization.

9742749705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16654297 (or 16654294 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The square root of 9742749705 is about 98705.3681670860. The cubic root of 9742749705 is about 2135.7996704613.

The spelling of 9742749705 in words is "nine billion, seven hundred forty-two million, seven hundred forty-nine thousand, seven hundred five".