45172257238 has 8 divisors (see below), whose sum is σ = 67798038960. Its totient is φ = 22572910920.

The previous prime is 45172257223. The next prime is 45172257239. The reversal of 45172257238 is 83275227154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45172257239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6604578 + ... + 6611413.

It is an arithmetic number, because the mean of its divisors is an integer number (8474754870).

Almost surely, 2^45172257238 is an apocalyptic number.

45172257238 is a deficient number, since it is larger than the sum of its proper divisors (22625781722).

45172257238 is a wasteful number, since it uses less digits than its factorization.

45172257238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217702.

The product of its digits is 940800, while the sum is 46.

The spelling of 45172257238 in words is "forty-five billion, one hundred seventy-two million, two hundred fifty-seven thousand, two hundred thirty-eight".