7138229544 has 64 divisors (see below), whose sum is σ = 20079456000. Its totient is φ = 2349285120.

The previous prime is 7138229543. The next prime is 7138229573. The reversal of 7138229544 is 4459228317.

7138229544 is a `hidden beast` number, since 7 + 1 + 3 + 82 + 29 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 7138229544.

It is not an unprimeable number, because it can be changed into a prime (7138229543) by changing a digit.

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, 192097 + ... + 226224.

It is an arithmetic number, because the mean of its divisors is an integer number (313741500).

Almost surely, 2^7138229544 is an apocalyptic number.

It is an amenable number.

7138229544 is an abundant number, since it is smaller than the sum of its proper divisors (12941226456).

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

7138229544 is a wasteful number, since it uses less digits than its factorization.

7138229544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418415 (or 418405 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 7138229544 is about 84488.0437931901. The cubic root of 7138229544 is about 1925.4407980494.

The spelling of 7138229544 in words is "seven billion, one hundred thirty-eight million, two hundred twenty-nine thousand, five hundred forty-four".