9138654471 has 16 divisors (see below), whose sum is σ = 12265402464. Its totient is φ = 6052305024.

The previous prime is 9138654461. The next prime is 9138654527. The reversal of 9138654471 is 1744568319.

It is not a de Polignac number, because 9138654471 - 2²¹ = 9136557319 is a prime.

It is a super-3 number, since 3×9138654471³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9138654471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9138654401) 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, 262245 + ... + 295041.

It is an arithmetic number, because the mean of its divisors is an integer number (766587654).

Almost surely, 2^9138654471 is an apocalyptic number.

9138654471 is a deficient number, since it is larger than the sum of its proper divisors (3126747993).

9138654471 is a wasteful number, since it uses less digits than its factorization.

9138654471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33410.

The product of its digits is 725760, while the sum is 48.

The square root of 9138654471 is about 95596.3099235530. The cubic root of 9138654471 is about 2090.7113922548.

The spelling of 9138654471 in words is "nine billion, one hundred thirty-eight million, six hundred fifty-four thousand, four hundred seventy-one".