72391819327 has 8 divisors (see below), whose sum is σ = 72461632320. Its totient is φ = 72322037760.

The previous prime is 72391819273. The next prime is 72391819363.

72391819327 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 72391819327 - 2²³ = 72383430719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72391819127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8499423 + ... + 8507935.

It is an arithmetic number, because the mean of its divisors is an integer number (9057704040).

Almost surely, 2^72391819327 is an apocalyptic number.

72391819327 is a deficient number, since it is larger than the sum of its proper divisors (69812993).

72391819327 is a wasteful number, since it uses less digits than its factorization.

72391819327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713.

The product of its digits is 1143072, while the sum is 52.

The spelling of 72391819327 in words is "seventy-two billion, three hundred ninety-one million, eight hundred nineteen thousand, three hundred twenty-seven".