72403230427 has 8 divisors (see below), whose sum is σ = 79872819120. Its totient is φ = 65081554560.

The previous prime is 72403230323. The next prime is 72403230433.

72403230427 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72403230427 - 2¹¹ = 72403228379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72403230392 and 72403230401.

It is not an unprimeable number, because it can be changed into a prime (72403230127) 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, 36977178 + ... + 36979135.

It is an arithmetic number, because the mean of its divisors is an integer number (9984102390).

Almost surely, 2^72403230427 is an apocalyptic number.

72403230427 is a deficient number, since it is larger than the sum of its proper divisors (7469588693).

72403230427 is a wasteful number, since it uses less digits than its factorization.

72403230427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73956413.

The product of its (nonzero) digits is 56448, while the sum is 34.

The spelling of 72403230427 in words is "seventy-two billion, four hundred three million, two hundred thirty thousand, four hundred twenty-seven".