75221239063 has 4 divisors (see below), whose sum is σ = 76970570248. Its totient is φ = 73471907880.

The previous prime is 75221239003. The next prime is 75221239069. The reversal of 75221239063 is 36093212257.

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

It is a cyclic number.

It is not a de Polignac number, because 75221239063 - 2¹⁷ = 75221107991 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 (75221239069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874665528 + ... + 874665613.

It is an arithmetic number, because the mean of its divisors is an integer number (19242642562).

Almost surely, 2^75221239063 is an apocalyptic number.

75221239063 is a deficient number, since it is larger than the sum of its proper divisors (1749331185).

75221239063 is a wasteful number, since it uses less digits than its factorization.

75221239063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749331184.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 75221239063 in words is "seventy-five billion, two hundred twenty-one million, two hundred thirty-nine thousand, sixty-three".