9138351398 has 16 divisors (see below), whose sum is σ = 15603826176. Its totient is φ = 3973196040.

The previous prime is 9138351367. The next prime is 9138351407. The reversal of 9138351398 is 8931538319.

It is a super-3 number, since 3×9138351398³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

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, 9029486 + ... + 9030497.

It is an arithmetic number, because the mean of its divisors is an integer number (975239136).

Almost surely, 2^9138351398 is an apocalyptic number.

9138351398 is a deficient number, since it is larger than the sum of its proper divisors (6465474778).

9138351398 is a wasteful number, since it uses less digits than its factorization.

9138351398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18060019.

The product of its digits is 699840, while the sum is 50.

The square root of 9138351398 is about 95594.7247393913. The cubic root of 9138351398 is about 2090.6882799837.

The spelling of 9138351398 in words is "nine billion, one hundred thirty-eight million, three hundred fifty-one thousand, three hundred ninety-eight".