9138616775 has 12 divisors (see below), whose sum is σ = 11395197000. Its totient is φ = 7270046880.

The previous prime is 9138616741. The next prime is 9138616777. The reversal of 9138616775 is 5776168319.

It is not a de Polignac number, because 9138616775 - 2²⁶ = 9071507911 is a prime.

It is a super-2 number, since 2×9138616775² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138616777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016600 + ... + 1025549.

It is an arithmetic number, because the mean of its divisors is an integer number (949599750).

Almost surely, 2^9138616775 is an apocalyptic number.

9138616775 is a deficient number, since it is larger than the sum of its proper divisors (2256580225).

9138616775 is a wasteful number, since it uses less digits than its factorization.

9138616775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042338 (or 2042333 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The square root of 9138616775 is about 95596.1127609277. The cubic root of 9138616775 is about 2090.7085175951.

The spelling of 9138616775 in words is "nine billion, one hundred thirty-eight million, six hundred sixteen thousand, seven hundred seventy-five".