7138121748507 has 12 divisors (see below), whose sum is σ = 10323178925904. Its totient is φ = 4752951545040.

The previous prime is 7138121748481. The next prime is 7138121748623. The reversal of 7138121748507 is 7058471218317.

7138121748507 is a `hidden beast` number, since 7 + 1 + 3 + 8 + 121 + 7 + 4 + 8 + 507 = 666.

It is not a de Polignac number, because 7138121748507 - 2⁷ = 7138121748379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7138121048507) 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 11 ways as a sum of consecutive naturals, for example, 483016143 + ... + 483030920.

It is an arithmetic number, because the mean of its divisors is an integer number (860264910492).

Almost surely, 2^{7138121748507} is an apocalyptic number.

7138121748507 is a deficient number, since it is larger than the sum of its proper divisors (3185057177397).

7138121748507 is a wasteful number, since it uses less digits than its factorization.

7138121748507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966047890 (or 966047887 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The spelling of 7138121748507 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-one million, seven hundred forty-eight thousand, five hundred seven".