9749768782 has 8 divisors (see below), whose sum is σ = 15749626536. Its totient is φ = 4499893272.

The previous prime is 9749768741. The next prime is 9749768789. The reversal of 9749768782 is 2878679479.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9749768789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187495528 + ... + 187495579.

It is an arithmetic number, because the mean of its divisors is an integer number (1968703317).

Almost surely, 2^9749768782 is an apocalyptic number.

9749768782 is a deficient number, since it is larger than the sum of its proper divisors (5999857754).

9749768782 is a wasteful number, since it uses less digits than its factorization.

9749768782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374991122.

The product of its digits is 85349376, while the sum is 67.

The square root of 9749768782 is about 98740.9174658611. The cubic root of 9749768782 is about 2136.3124532694.

The spelling of 9749768782 in words is "nine billion, seven hundred forty-nine million, seven hundred sixty-eight thousand, seven hundred eighty-two".