9378448739 has 16 divisors (see below), whose sum is σ = 10556075520. Its totient is φ = 8259070560.

The previous prime is 9378448733. The next prime is 9378448771.

9378448739 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9378448739 - 2⁸ = 9378448483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9378448733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55757 + ... + 147870.

It is an arithmetic number, because the mean of its divisors is an integer number (659754720).

Almost surely, 2^9378448739 is an apocalyptic number.

9378448739 is a deficient number, since it is larger than the sum of its proper divisors (1177626781).

9378448739 is a wasteful number, since it uses less digits than its factorization.

9378448739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203770.

The product of its digits is 36578304, while the sum is 62.

The square root of 9378448739 is about 96842.3912292546. The cubic root of 9378448739 is about 2108.8401897006.

The spelling of 9378448739 in words is "nine billion, three hundred seventy-eight million, four hundred forty-eight thousand, seven hundred thirty-nine".