72345854327 has 4 divisors (see below), whose sum is σ = 72346828176. Its totient is φ = 72344880480.

The previous prime is 72345854303. The next prime is 72345854351.

72345854327 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (72345854303) and next prime (72345854351).

It is a cyclic number.

It is not a de Polignac number, because 72345854327 - 2²⁶ = 72278745463 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72345854627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365378 + ... + 527439.

It is an arithmetic number, because the mean of its divisors is an integer number (18086707044).

Almost surely, 2^72345854327 is an apocalyptic number.

72345854327 is a deficient number, since it is larger than the sum of its proper divisors (973849).

72345854327 is an equidigital number, since it uses as much as digits as its factorization.

72345854327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973848.

The product of its digits is 5644800, while the sum is 50.

The spelling of 72345854327 in words is "seventy-two billion, three hundred forty-five million, eight hundred fifty-four thousand, three hundred twenty-seven".