9378338739 has 128 divisors (see below), whose sum is σ = 16582164480. Its totient is φ = 4573632000.

The previous prime is 9378338713. The next prime is 9378338807.

9378338739 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9378338739 - 2⁵ = 9378338707 is a prime.

It is a super-2 number, since 2×9378338739² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9378338239) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 56157634 + ... + 56157800.

It is an arithmetic number, because the mean of its divisors is an integer number (129548160).

Almost surely, 2^9378338739 is an apocalyptic number.

9378338739 is a deficient number, since it is larger than the sum of its proper divisors (7203825741).

9378338739 is a wasteful number, since it uses less digits than its factorization.

9378338739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 20575296, while the sum is 60.

The square root of 9378338739 is about 96841.8232944837. The cubic root of 9378338739 is about 2108.8319447930.

The spelling of 9378338739 in words is "nine billion, three hundred seventy-eight million, three hundred thirty-eight thousand, seven hundred thirty-nine".