72306080534123 has 4 divisors (see below), whose sum is σ = 72342035822328. Its totient is φ = 72270125245920.

The previous prime is 72306080534071. The next prime is 72306080534131. The reversal of 72306080534123 is 32143508060327.

It is a happy number.

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 72306080534123 - 2⁶ = 72306080534059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72306080534423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17977641086 + ... + 17977645107.

It is an arithmetic number, because the mean of its divisors is an integer number (18085508955582).

Almost surely, 2^{72306080534123} is an apocalyptic number.

72306080534123 is a deficient number, since it is larger than the sum of its proper divisors (35955288205).

72306080534123 is a wasteful number, since it uses less digits than its factorization.

72306080534123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35955288204.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 72306080534123 in words is "seventy-two trillion, three hundred six billion, eighty million, five hundred thirty-four thousand, one hundred twenty-three".