75138757007 has 6 divisors (see below), whose sum is σ = 76054957272. Its totient is φ = 74233463972.

The previous prime is 75138756991. The next prime is 75138757027. The reversal of 75138757007 is 70075783157.

It is a happy number.

It is not a de Polignac number, because 75138757007 - 2⁴ = 75138756991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75138757027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5446643 + ... + 5460420.

It is an arithmetic number, because the mean of its divisors is an integer number (12675826212).

Almost surely, 2^75138757007 is an apocalyptic number.

75138757007 is a deficient number, since it is larger than the sum of its proper divisors (916200265).

75138757007 is an equidigital number, since it uses as much as digits as its factorization.

75138757007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907229 (or 10907146 counting only the distinct ones).

The product of its (nonzero) digits is 1440600, while the sum is 50.

The spelling of 75138757007 in words is "seventy-five billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, seven".