72257373175 has 12 divisors (see below), whose sum is σ = 96491384920. Its totient is φ = 53359290720.

The previous prime is 72257373173. The next prime is 72257373187. The reversal of 72257373175 is 57137375227.

It is not a de Polignac number, because 72257373175 - 2¹ = 72257373173 is a prime.

It is a super-2 number, since 2×72257373175² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72257373173) 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 11 ways as a sum of consecutive naturals, for example, 111164865 + ... + 111165514.

Almost surely, 2^72257373175 is an apocalyptic number.

72257373175 is a deficient number, since it is larger than the sum of its proper divisors (24234011745).

72257373175 is a wasteful number, since it uses less digits than its factorization.

72257373175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222330402 (or 222330397 counting only the distinct ones).

The product of its digits is 2160900, while the sum is 49.

The spelling of 72257373175 in words is "seventy-two billion, two hundred fifty-seven million, three hundred seventy-three thousand, one hundred seventy-five".