7500138138875 has 32 divisors (see below), whose sum is σ = 9401532192000. Its totient is φ = 5973609600000.

The previous prime is 7500138138859. The next prime is 7500138138907. The reversal of 7500138138875 is 5788318310057.

It is not a de Polignac number, because 7500138138875 - 2⁴ = 7500138138859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7500138138875.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138861875 + ... + 138915875.

It is an arithmetic number, because the mean of its divisors is an integer number (293797881000).

Almost surely, 2^{7500138138875} is an apocalyptic number.

7500138138875 is a deficient number, since it is larger than the sum of its proper divisors (1901394053125).

7500138138875 is a wasteful number, since it uses less digits than its factorization.

7500138138875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58904 (or 58894 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 56.

It can be divided in two parts, 750013 and 8138875, that added together give a palindrome (8888888).

The spelling of 7500138138875 in words is "seven trillion, five hundred billion, one hundred thirty-eight million, one hundred thirty-eight thousand, eight hundred seventy-five".