7538009009555 has 4 divisors (see below), whose sum is σ = 9045610811472. Its totient is φ = 6030407207640.

The previous prime is 7538009009551. The next prime is 7538009009561. The reversal of 7538009009555 is 5559009008357.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7538009009555 - 2² = 7538009009551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7538009009555.

It is not an unprimeable number, because it can be changed into a prime (7538009009551) 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 3 ways as a sum of consecutive naturals, for example, 753800900951 + ... + 753800900960.

It is an arithmetic number, because the mean of its divisors is an integer number (2261402702868).

Almost surely, 2^{7538009009555} is an apocalyptic number.

7538009009555 is a deficient number, since it is larger than the sum of its proper divisors (1507601801917).

7538009009555 is a wasteful number, since it uses less digits than its factorization.

7538009009555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507601801916.

The product of its (nonzero) digits is 8505000, while the sum is 56.

The spelling of 7538009009555 in words is "seven trillion, five hundred thirty-eight billion, nine million, nine thousand, five hundred fifty-five".