7149638124 has 48 divisors (see below), whose sum is σ = 18643292640. Its totient is φ = 2369430720.

The previous prime is 7149638087. The next prime is 7149638141. The reversal of 7149638124 is 4218369417.

7149638124 is a `hidden beast` number, since 7 + 1 + 4 + 9 + 638 + 1 + 2 + 4 = 666.

It is a super-3 number, since 3×7149638124³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 7149638124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172647 + ... + 210014.

It is an arithmetic number, because the mean of its divisors is an integer number (388401930).

Almost surely, 2^7149638124 is an apocalyptic number.

It is an amenable number.

7149638124 is an abundant number, since it is smaller than the sum of its proper divisors (11493654516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7149638124 is a wasteful number, since it uses less digits than its factorization.

7149638124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382847 (or 382839 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 7149638124 is about 84555.5327817169. The cubic root of 7149638124 is about 1926.4660220700.

The spelling of 7149638124 in words is "seven billion, one hundred forty-nine million, six hundred thirty-eight thousand, one hundred twenty-four".