9478668749 has 8 divisors (see below), whose sum is σ = 10421787648. Its totient is φ = 8549120160.

The previous prime is 9478668691. The next prime is 9478668761.

9478668749 is nontrivially palindromic in base 10.

9478668749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9478668749 - 2¹⁶ = 9478603213 is a prime.

It is a super-2 number, since 2×9478668749² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478668799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391112 + ... + 3393905.

It is an arithmetic number, because the mean of its divisors is an integer number (1302723456).

Almost surely, 2^9478668749 is an apocalyptic number.

It is an amenable number.

9478668749 is a deficient number, since it is larger than the sum of its proper divisors (943118899).

9478668749 is a wasteful number, since it uses less digits than its factorization.

9478668749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785155.

The product of its digits is 146313216, while the sum is 68.

The square root of 9478668749 is about 97358.4549435744. The cubic root of 9478668749 is about 2116.3254214535.

The spelling of 9478668749 in words is "nine billion, four hundred seventy-eight million, six hundred sixty-eight thousand, seven hundred forty-nine".