72324771427 has 4 divisors (see below), whose sum is σ = 72374617656. Its totient is φ = 72274925200.

The previous prime is 72324771377. The next prime is 72324771443. The reversal of 72324771427 is 72417742327.

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 72324771427 - 2²³ = 72316382819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72324771527) 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, 24920938 + ... + 24923839.

It is an arithmetic number, because the mean of its divisors is an integer number (18093654414).

Almost surely, 2^72324771427 is an apocalyptic number.

72324771427 is a deficient number, since it is larger than the sum of its proper divisors (49846229).

72324771427 is a wasteful number, since it uses less digits than its factorization.

72324771427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49846228.

The product of its digits is 921984, while the sum is 46.

The spelling of 72324771427 in words is "seventy-two billion, three hundred twenty-four million, seven hundred seventy-one thousand, four hundred twenty-seven".