75115450212123 has 16 divisors (see below), whose sum is σ = 102296212874240. Its totient is φ = 49015348420896.

The previous prime is 75115450212119. The next prime is 75115450212149. The reversal of 75115450212123 is 32121205451157.

It is not a de Polignac number, because 75115450212123 - 2² = 75115450212119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75115450212163) 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 15 ways as a sum of consecutive naturals, for example, 1190123563 + ... + 1190186676.

It is an arithmetic number, because the mean of its divisors is an integer number (6393513304640).

Almost surely, 2^{75115450212123} is an apocalyptic number.

75115450212123 is a deficient number, since it is larger than the sum of its proper divisors (27180762662117).

75115450212123 is a wasteful number, since it uses less digits than its factorization.

75115450212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380310466.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 75115450212123 in words is "seventy-five trillion, one hundred fifteen billion, four hundred fifty million, two hundred twelve thousand, one hundred twenty-three".