9739281394 has 16 divisors (see below), whose sum is σ = 14883789600. Its totient is φ = 4778321184.

The previous prime is 9739281389. The next prime is 9739281457. The reversal of 9739281394 is 4931829379.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10899 + ... + 139990.

It is an arithmetic number, because the mean of its divisors is an integer number (930236850).

Almost surely, 2^9739281394 is an apocalyptic number.

9739281394 is a deficient number, since it is larger than the sum of its proper divisors (5144508206).

9739281394 is a wasteful number, since it uses less digits than its factorization.

9739281394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151497.

The product of its digits is 2939328, while the sum is 55.

The square root of 9739281394 is about 98687.7975942315. The cubic root of 9739281394 is about 2135.5462000380.

The spelling of 9739281394 in words is "nine billion, seven hundred thirty-nine million, two hundred eighty-one thousand, three hundred ninety-four".