75201378355 has 4 divisors (see below), whose sum is σ = 90241654032. Its totient is φ = 60161102680.

The previous prime is 75201378311. The next prime is 75201378359. The reversal of 75201378355 is 55387310257.

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

It is not a de Polignac number, because 75201378355 - 2²¹ = 75199281203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75201378359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7520137831 + ... + 7520137840.

It is an arithmetic number, because the mean of its divisors is an integer number (22560413508).

Almost surely, 2^75201378355 is an apocalyptic number.

75201378355 is a deficient number, since it is larger than the sum of its proper divisors (15040275677).

75201378355 is a wasteful number, since it uses less digits than its factorization.

75201378355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15040275676.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 75201378355 in words is "seventy-five billion, two hundred one million, three hundred seventy-eight thousand, three hundred fifty-five".