75242162273 has 4 divisors (see below), whose sum is σ = 75260639748. Its totient is φ = 75223684800.

The previous prime is 75242162239. The next prime is 75242162311. The reversal of 75242162273 is 37226124257.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42541950049 + 32700212224 = 206257^2 + 180832^2 .

It is a cyclic number.

It is not a de Polignac number, because 75242162273 - 2¹⁰ = 75242161249 is a prime.

It is a super-2 number, since 2×75242162273² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75242162273.

It is not an unprimeable number, because it can be changed into a prime (75242161273) 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, 9232628 + ... + 9240773.

It is an arithmetic number, because the mean of its divisors is an integer number (18815159937).

Almost surely, 2^75242162273 is an apocalyptic number.

It is an amenable number.

75242162273 is a deficient number, since it is larger than the sum of its proper divisors (18477475).

75242162273 is a wasteful number, since it uses less digits than its factorization.

75242162273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18477474.

The product of its digits is 282240, while the sum is 41.

The spelling of 75242162273 in words is "seventy-five billion, two hundred forty-two million, one hundred sixty-two thousand, two hundred seventy-three".