72552512743123 has 4 divisors (see below), whose sum is σ = 82917157420720. Its totient is φ = 62187868065528.

The previous prime is 72552512743091. The next prime is 72552512743189. The reversal of 72552512743123 is 32134721525527.

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 72552512743123 - 2⁵ = 72552512743091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72552512747123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5182322338788 + ... + 5182322338801.

It is an arithmetic number, because the mean of its divisors is an integer number (20729289355180).

Almost surely, 2^{72552512743123} is an apocalyptic number.

72552512743123 is a deficient number, since it is larger than the sum of its proper divisors (10364644677597).

72552512743123 is a wasteful number, since it uses less digits than its factorization.

72552512743123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10364644677596.

The product of its digits is 3528000, while the sum is 49.

The spelling of 72552512743123 in words is "seventy-two trillion, five hundred fifty-two billion, five hundred twelve million, seven hundred forty-three thousand, one hundred twenty-three".