7138623375 has 72 divisors (see below), whose sum is σ = 13934963952. Its totient is φ = 3514305600.

The previous prime is 7138623329. The next prime is 7138623377. The reversal of 7138623375 is 5733268317.

7138623375 is a `hidden beast` number, since 7 + 13 + 8 + 623 + 3 + 7 + 5 = 666.

7138623375 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7138623375 - 2⁹ = 7138622863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 7138623375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138623377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 171352 + ... + 208898.

It is an arithmetic number, because the mean of its divisors is an integer number (193541166).

Almost surely, 2^7138623375 is an apocalyptic number.

7138623375 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7138623375 is a deficient number, since it is larger than the sum of its proper divisors (6796340577).

7138623375 is a wasteful number, since it uses less digits than its factorization.

7138623375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37594 (or 37568 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 7138623375 is about 84490.3744517682. The cubic root of 7138623375 is about 1925.4762075920.

The spelling of 7138623375 in words is "seven billion, one hundred thirty-eight million, six hundred twenty-three thousand, three hundred seventy-five".